| Inbound Relationships |
Type |
Active |
Source |
Characteristic |
Refinability |
Group |
| Family history of congenital microcephaly |
Associated finding |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
1 |
| Osteogenesis imperfecta, recessive perinatal lethal, with microcephaly AND cataracts |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Amish lethal microcephaly (disorder) |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| An extremely rare genetic syndrome characterized by the association of microcephaly, intellectual deficit and achalasia (with symptoms of coughing, dysphagia, vomiting, failure to thrive and aspiration appearing in infancy/early-childhood). Antenatal exposure to Mefloquine was reported in one simplex case. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare syndromic agammaglobulinaemia characterised by profound B-cell depletion (with normal T-cell numbers) resulting in agammaglobulinaemia, associated with severe developmental delay, microcephaly, craniosynostosis, cleft palate, narrowing of the choanae, blepharophimosis, and severe dermatitis. Additional reported features include distal joint contractures, renal/genitourinary anomalies, and mild cerebral atrophy, among others. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Stimmler syndrome is characterized by the association of microcephaly, low birth weight and severe intellectual deficit with dwarfism, small teeth and diabetes mellitus. Two cases have been described. Biochemical tests reveal the presence of high levels of alanine in the urine and elevated alanine, pyruvate and lactate levels in the blood. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| An autosomal recessive form of serine deficiency. The infantile disease has clinical characteristics in the few reported cases of congenital microcephaly, psychomotor retardation and intractable seizures. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare neuro-ophthalmological disease characterized by severe microcephaly of prenatal onset (with diminutive anterior fontanel and sutural ridging), growth retardation, global developmental delay and intellectual disability (ranging from mild to profound), dysmorphic features (sloping forehead, micro/retrognathia, prominent ears) and visual impairments (including microphthalmia to anophthalmia, generalized retinopathy or multiple punched-out retinal lesions, retinal folds with retinal detachment, optic nerve hypoplasia, strabismus, nystagmus). Brain MRI may show reduced cortical size, cerebral hemispheres, corpus callosum, pachygyria, simplified gyral folding or normal pattern. Other associated features include epilepsy and neurological deficits. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A multiple congenital anomaly disorder characterized by anonychia congenita totalis and microcephaly, and normal intelligence along with some minor anomalies including single transverse palmar creases, fifth-finger clinodactyly and widely spaced teeth. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| An extremely rare malformation syndrome characterized by the association of partial distal aphalangia with syndactyly, duplication of metatarsal IV, microcephaly, and mild intellectual disability. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, non-syndromic, developmental defect during embryogenesis malformation syndrome characterized by a congenital, non-progressive, occipitofrontal head circumference that is 2 or more standard deviations below the mean for age, gender and ethnicity which is associated with normal brain architecture and uncomplicated by other abnormalities. Borderline to moderate intellectual disability, as well as early psychomotor delay, may or may not be associated. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Cleft palate-large ears-small head syndrome is a rare, genetic syndrome characterized by cleft palate, large protruding ears, microcephaly and short stature (prenatal onset). Other skeletal abnormalities (delayed bone age, distally tapering fingers, hypoplastic distal phalanges, proximally placed thumbs, fifth finger clinodactyly), Pierre Robin sequence, cystic renal dysplasia, proximal renal tubular acidosis, hypospadias, cerebral anomalies on imaging (enlargement of lateral ventricles, mild cortical atrophy), seizures, hypotonia and developmental delay are also observed. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Congenital intrauterine infection-like syndrome is characterized by the presence of microcephaly and intracranial calcifications at birth accompanied by neurological delay, seizures and a clinical course similar to that seen in patients after intrauterine infection with Toxoplasma gondii, Rubella, Cytomegalovirus, Herpes simplex (so-called TORCH syndrome), or other agents, despite repeated tests revealing the absence of any known infectious agent. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies syndrome characterized by cutaneous mastocytosis, microcephaly, microtia and/or hearing loss, hypotonia and skeletal anomalies (e.g. clinodactyly, camptodactyly, scoliosis). Additional common features are short stature, intellectual disability and difficulties. Facial dysmorphism may include upslanted palpebral fissures, highly arched palate and micrognathia. Rarely, seizures and asymmetrically small feet have been reported. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Autosomal recessive primary microcephaly (MCPH) is a rare genetically heterogeneous disorder of neurogenic brain development characterized by reduced head circumference at birth with no gross anomalies of brain architecture and variable degrees of intellectual impairment. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, neurometabolic disorder characterised by severe, progressive microcephaly, severe to profound global development delay, intellectual disability, seizures (typically tonic and/or myoclonic and frequently intractable), hyperekplexia, and axial hypotonia with appendicular spasticity, as well as hyperreflexia, dyskinetic quadriplegia, and abnormal brain morphology (cerebral atrophy with variable additional features including ventriculomegaly, pons and/or cerebellar hypoplasia, simplified gyral pattern and delayed myelination). Cortical blindness, feeding difficulties and respiratory insufficiency may also be associated. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, hypotonia, seizures, microcephaly, delayed bone maturation, and skeletal abnormalities (such as scoliosis or pectus excavatum, among others). Dysmorphic features include coarse face, hirsutism, thick eyebrows, broad nasal septum, short philtrum, large mouth, and prominent ears. There have been no further descriptions in the literature since 1996. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, central nervous system malformation syndrome characterized by congenital, progressive microcephaly, neonatal to infancy-onset of severe, intractable seizures, and diffuse cerebral cortex and cerebellar vermis atrophy with mild cerebellar hemisphere atrophy, associated with profound global developmental delay. Hypotonia or hypertonia with brisk reflexes, variable dysmorphic facial features, ophthalmological signs (cortical visual impairment, nystagmus, eye deviation) and episodes of sudden extreme agitation caused by severe illness may also be associated. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Extrasystoles-short stature-hyperpigmentation-microcephaly syndrome is a rare, genetic, malformation syndrome with short stature characterised by microcephaly, borderline intellectual disability, hyperpigmentation of the skin, short stature, and ventricular extrasystoles. Cardiac syncope may also be associated. There have been no further descriptions in the literature since 1975. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare disorder characterized by the association of epiphyseal dysplasia, short stature, microcephaly and, in the first reported cases, congenital nystagmus. So far, less than 10 cases have been described in the literature. Variable degrees of intellectual deficit have also been reported. Other occasional features include retinitis pigmentosa and coxa vara. Transmission appears to be autosomal recessive. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by Hirschsprung disease, facial dysmorphism (sloping forehead, high arched eyebrows, long eyelashes, telecanthus/hypertelorism, ptosis, prominent ears, thick earlobes, prominent nasal bridge, thick philtrum, everted lower lip vermillion and pointed chin), global developmental delay, intellectual disability and variable cerebral abnormalities (focal or generalized polymicrogyria, or hypoplastic corpus callosum). |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Filippi syndrome is characterized by microcephaly, cutaneous syndactyly of the fingers and toes, intellectual deficit, growth retardation and a characteristic facies (high and broad nasal bridge, thin alae nasi, micrognathia and a high frontal hairline). So far, less than 25 cases have been reported. Cryptorchidism, polydactyly, and teeth and hair anomalies may also be present. Transmission is autosomal recessive. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Hydromicrocephaly |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Hypogonadotropic hypogonadism-severe microcephaly-sensorineural hearing loss-dysmorphism syndrome is a rare, non-acquired pituitary hormone deficiency syndrome characterized by severe, congenital microcephaly, facial dysmorphism (highly arched eyebrows, hypertelorism, convex nasal ridge, protruding ears with underdeveloped superior antihelix crus, micrognathia), bilateral sensorineural deafness and hypogonadotropic hypogonadism, in association with early feeding problems, myopia, moderate intellectual disability and moderate short stature. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Hall-Riggs syndrome is a very rare syndrome consisting of microcephaly with facial dysmorphism, spondylometaphyseal dysplasia and severe intellectual deficit. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Jawad syndrome is a rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by congenital microcephaly with facial dysmorphism (sloping forehead, prominent nose, mild retrognathia), moderate to severe, non-progressive intellectual disability and symmetrical digital malformations of variable degree, including brachydactyly of the fifth fingers with single flexion crease, clinodactyly, syndactyly, polydactyly and hallux valgus. Congenital anonychia and white café au lait-like spots on the skin of hands and feet are also associated. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, neurodevelopmental disorder characterized by global developmental delay, borderline to severe intellectual disability, feeding difficulties, behavioral anomalies, vision anomalies and mild facial dysmorphism. Other associated features may include microcephaly, short stature, urogenital or palatal anomalies (e.g. cleft palate), minor cardiac defects, recurrent infections or hearing loss. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by psychomotor and growth delay, severe intellectual disability, microcephaly, and hypoplastic corpus callosum. Additional reported manifestations include increased muscle tonus, seizures, cardiac anomalies, recurrent bronchopneumonia, camptodactyly, preauricular skin tag, and dysmorphic facial features (such as broad forehead, hypertelorism, flat nasal bridge, anteverted nostrils, and prominent ears), among others. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare form of primordial dwarfism, often microcephalic, characterized by short stature, global developmental delay, variable intellectual disability and recognizable dysmorphic facial features (triangular face, prominent forehead, deeply set eyes, low-set ears, wide nose, malar hypoplasia, wide mouth, thick lips, and widely spaced teeth). |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephalic primordial dwarfism, Dauber type is a rare, genetic developmental defect during embryogenesis characterized by severe pre- and postnatal growth retardation, severe microcephaly, severe developmental delay and intellectual disability, severe adult short stature and facial dysmorphism (including hypotelorism, small ears, prominent nose). Other reported features include skeletal anomalies (Madelung deformity, clinodactyly, mild lumbar scoliosis, bilateral hip dysplasia) and seizures. Absence of thelarche and menarche is also associated. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Lowry-MacLean syndrome is a very rare syndrome characterized by microcephaly, craniosynostosis, glaucoma, growth failure and visceral malformations. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephalic osteodysplastic dysplasia, Saul-Wilson type is a skeletal dysplasia characterised by a distinct facial phenotype, short stature, brachydactyly, clubfoot deformities, cataracts, and microcephaly. It has been described in four patients. Facial features include frontal bossing with a depression over the metopic suture, a narrow nasal root with a beaked nose, and midfacial hypoplasia with prominent eyes. Characteristic radiographic findings are observed (irregularities of the vertebral bodies, hypoplasia of the odontoid process, short phalanges, coning several epiphyses etc.). |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, severe, primary bone dysplasia characterized by intrauterine and postnatal growth retardation, microcephaly, facial dysmorphism, skeletal dysplasia, low-birth weight and brain anomalies. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic multiple congenital anomalies/dysmorphic syndrome characterized by severe short stature and craniofacial dysmorphism (microcephaly, narrow face with flat cheeks, ptosis, prominent nose with a convex ridge, low-set ears with small or absent lobes, high-arched/cleft palate, micrognathia), associated with premature graying and loss of scalp hair, redundant, dry and wrinkled skin of the palms, premature senility and varying degrees of intellectual disability. Cryptorchidism and skeletal anomalies may also be observed. There have been no further descriptions in the literature since 1970. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-cardiomyopathy syndrome is characterized by severe intellectual deficit, microcephaly and dilated cardiomyopathy. Hand and foot anomalies have also been reported. The syndrome has been described in three individuals. Transmission is autosomal recessive. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-cleft palate-abnormal retinal pigmentation syndrome is a rare orofacial clefting syndrome characterized by microcephaly, cleft of the secondary palate and other variable abnormalities, including abnormal retinal pigmentation, facial dysmorphism with hypotelorism and maxillary hypoplasia. Goiter, camptodactyly, abnormal dermatoglyphics and mild intellectual disability may also be associated. There have been no further descriptions in the literature since 1983. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare disorder characterized by growth retardation with prenatal onset, cataracts, microcephaly, intellectual deficit, immune deficiency, delayed ossification and enamel hypoplasia. It has been described in two siblings. Transmission is autosomal recessive. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-facio-cardio-skeletal syndrome, Hadziselimovic type is a rare syndrome with cardiac malformations, characterized by prenatal-onset growth retardation (low birth weight and short stature), hypotonia, developmental delay and intellectual disability associated with microcephaly and craniofacial (low anterior hairline, hypotelorism, thick lips with carp-shaped mouth, high-arched palate, low-set ears), cardiac and skeletal (hypoplastic thumbs and first metacarpals) abnormalities. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-cervical spine fusion anomalies syndrome is characterized by microcephaly, facial dysmorphism (beaked nose, low-set ears, downslanting palpebral fissures, micrognathia), mild intellectual deficit, short stature, and cervical spine fusion anomalies producing spinal cord compression. It has been described in two brothers born to consanguineous parents. Transmission is likely to be autosomal recessive. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-microcornea syndrome, Seemanova type is characterized by microcephaly and brachycephaly, eye anomalies (microphthalmia, microcornea, congenital cataract), hypogenitalism, severe intellectual deficit, growth retardation and progressive spasticity. It has been described in two patients (a male and his sister's son). Both patients also presented with facial dysmorphism, including upslanting palpebral fissures, epicanthal folds, highly arched palate, microstomia, and retrognathia. This syndrome is transmitted as an X-linked trait. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly - albinism - digital anomalies syndrome is a very rare syndrome associating microcephaly, micrognathia, oculocutaneous albinism, hypoplasia of the distal phalanx of fingers and agenesia of the distal end of the right big toe. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-brachydactyly-kyphoscoliosis syndrome is characterized by profound intellectual deficit in association with microcephaly, short stature, brachydactyly type D, a flattened occiput, downslanting palpebral fissures, low-set large ears, a broad prominent nose and kyphoscoliosis. It has been described in three sisters. The disorder is likely to be transmitted as an autosomal recessive trait. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly - cardiac defect - lung malsegmentation syndrome is a very rare syndrome characterized by the combination of microcephaly, heart defects, renal hypoplasia, lung segmentation defects and cleft palate. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-brain defect-spasticity-hypernatremia syndrome is a rare congenital genetic syndrome with a central nervous system malformation as a major feature characterized by microcephaly, hypertonia, developmental delay and cognitive impairment, swallowing difficulty, hypernatremia, and hypoplasia of the frontal parts and fusion of the lateral ventricles on brain MRI. There have been no further descriptions in the literature since 1986. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-complex motor and sensory axonal neuropathy syndrome is an extremely rare subtype of hereditary motor and sensory neuropathy characterized by severe, rapidly progressing, distal, symmetric polyneuropathy and microcephaly (which can be evident in utero) with intact cognition. Clinically it presents with delayed motor development, hypotonia, absent or reduced deep tendon reflexes, progressive muscle wasting and weakness and scoliosis. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-cerebellar hypoplasia-cardiac conduction defect syndrome is a rare, genetic congenital anomalies/dysmorphic syndrome characterized by growth failure, global developmental delay, profound intellectual disability, autistic behaviors, acquired second-degree heart block with bradycardia and vasomotor instability. Hands and feet present with long fusiform fingers, campto-clinodactyly and crowded toes while craniofacial dysmorphism includes microcephaly, broad forehead, thin eyebrows, upslanting palpebral fissures, large ears with prominent antihelix, prominent nose, long philtrum, thin upper lip vermillion and prominent lower lip. Neurological signs include hypotonia, brisk reflexes, dystonic-like movements and truncal ataxia and imaging shows cerebellar hypoplasia and simplified gyral pattern. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Mikati-Najjar-Sahli syndrome is characterized by microcephaly, hypergonadotropic hypogonadism, short stature and facial dysmorphism (a narrow forehead, hypertrophy and fusion of the eyebrows, micrognathia and pinnae abnormalities). |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare intellectual disability syndrome characterized by intellectual deficit, marfanoid habitus, microcephaly, and glomerulonephritis. There have been no further reports since 1992. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by microcephaly, developmental delay and intellectual disability, postnatal growth retardation, dysmorphic craniofacial features (including sloping forehead, beaked nose, large and protruding ears, micrognathia, high-arched palate, and craniosynostosis), immunologic abnormalities with transient hypogammaglobulinemia in infancy and defective chemotaxis leading to recurrent infections, as well as autoimmune/autoinflammatory phenomena. Skeletal anomalies and hypogonadism have also been reported. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-deafness-intellectual disability syndrome is characterized by microcephaly, deafness, intellectual deficit and facial dysmorphism (facial asymmetry, prominent glabella, low-set and cup-shaped ears, protruding lower lip, micrognathia). It has been described in a mother and her son. The mode of inheritance is probably autosomal dominant. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly with or without chorioretinopathy, lymphedema or intellectual disability (MCLID) is a rare autosomal dominant condition characterized by variable expression of microcephaly, ocular disorders including chorioretinopathy, congenital lymphedema of the lower limbs, and mild to moderate intellectual disability. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly with simplified gyral pattern |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, multiple congenital anomalies/dysmorphic syndrome characterized by microcephaly, intellectual disability, seizures, and congenital heart defects (e.g. atrial/ventricular septal defect, hypoplastic aortic arch with persistent ductus arteriosus). Additional manifestations include mild hypothyroidism, skeletal abnormalities, micropenis, delayed psychomotor development, dysmorphic facial features (including epicanthus, depressed nasal bridge, prominent antitragus), and pulmonary vascular occlusive disease. There have been no further descriptions in the literature since 1989. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| The MMEP syndrome is a congenital syndromic form of split-hand/foot malformation. It is characterized by microcephaly, microphthalmia, ectrodactyly of the lower limbs and prognathism. Intellectual deficit has been reported. MMEP syndrome is considered to be a very rare condition, although the exact prevalence remains unknown. The etiology is not completely understood. Disruption of the sorting nexin 3 gene (SNX3; 6q21) has been shown to play a causative role in MMEP, although this was not confirmed in recent studies. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-capillary malformation syndrome |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Neu-Laxova syndrome (NLS) is a rare, multiple malformation syndrome characterised by severe intrauterine growth retardation (IUGR), severe microcephaly with a sloping forehead, severe ichthyosis (collodion baby type), and facial dysmorphism. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Nijmegen breakage syndrome-like disorder is a rare, genetic multiple congenital anomalies/dysmorphic syndrome characterized by growth retardation, short stature, developmental delay, intellectual disability, craniofacial dysmorphism (i.e. severe microcephaly, sloping forehead, prominent eyes, broad nasal ridge, hypoplastic nasal septum, epicanthal folds), spontaneous chromosomal instability, cellular hypersensitivity to ionizing radiation and radioresistant DNA synthesis, without severe infections, immunodeficiency or cancer predisposition. Additional reported features include mild spasticity, slight and nonprogressive ataxia, hyperopia, multiple pigmented nevi, widely spaced nipples, and clinodactyly. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Microcephaly-polymicrogyria-corpus callosum agenesis syndrome is a rare, genetic, central nervous system malformation syndrome characterized by marked prenatal-onset microcephaly, severe motor delay with hypotonia, bilateral polymicrogyria, corpus callosum agenesis, ventricular dilation, small cerebellum and early lethality. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, syndromic intellectual disability characterized by severe intellectual disability, distinctive craniofacial features and variable multiple congenital anomalies including ocular, brain, urogenital and skeletal abnormalities. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Orofaciodigital syndrome type 14 is a rare subtype of orofaciodigital syndrome, with autosomal recessive inheritance and C2CD3 mutations, characterized by severe microcephaly, trigonocephaly, severe intellectual disability and micropenis, in addition to oral, facial and digital malformations (gingival frenulae, lingual hamartomas, cleft/lobulated tongue, cleft palate, telecanthus, up-slanting palpebral fissures, microretrognathia, postaxial polydactyly of hands and duplication of hallux). Corpus callosum agenesis and vermis hypoplasia with molar tooth sign, on brain imaging, are also associated. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Oculopalatocerebral syndrome is characterized by the association of four anomalies: intellectual deficit, microcephaly, palate anomalies and ocular abnormalities. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare syndrome described and characterized by prenatal onset of growth deficiency, microcephaly, hypoplastic genitalia, and birth onset of convulsions. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, syndromic intellectual disability disorder characterized by congenital, persistent microcephaly, low birth weight, short stature, childhood-onset seizures, global development delay, mild intellectual disability, and adolescent or young adult-onset diabetes mellitus. Gait ataxia, skeletal abnormalities, dorsocervical fat pad, and infantile cirrhosis may also be associated. Brain morphology is typically normal, although delayed myelination and hypoplastic brainstem have been reported. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Primary microcephaly-epilepsy-permanent neonatal diabetes syndrome is a rare, genetic, neurologic disease characterized by congenital microcephaly, severe, early-onset epileptic encephalopathy (manifesting as intractable, myoclonic and/or tonic-clonic seizures), permanent, neonatal, insulin-dependent diabetes mellitus, and severe global developmental delay. Muscular hypotonia, skeletal abnormalities, feeding difficulties, and dysmorphic facial features (including narrow forehead, anteverted nares, small mouth with deep philtrum, tented upper lip vermilion) are frequently associated. Brain MRI reveals cerebral atrophy with cortical gyral simplification and aplasia/hypoplasia of the corpus callosum. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Seckel syndrome |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| Radioulnar synostosis-microcephaly-scoliosis syndrome, also known as Guiffré-Tsukahara syndrome, is an extremely rare syndrome characterized by the association of radioulnar synostosis with microcephaly, scoliosis, short stature and intellectual deficit. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare syndromic intellectual deficiency characterized by psychomotor delay, severe progressive spastic quadriplegia, microcephaly, and a Hallermann-Streiff-like phenotype including absence of eyebrows and eyelashes, glaucoma, and small, beaked nose. Structural central nervous system abnormalities (cervical spinal cyst, occipital cranium bifidum occulatum) were additional findings. There have been no further descriptions in the literature since 1974. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| X-linked colobomatous microphthalmia-microcephaly-intellectual disability-short stature syndrome is a rare syndromic microphthalmia disorder characterized by microphthalmia with coloboma (which may involve the iris, ciliary body, choroid, retina and/or optic nerve), microcephaly, short stature and intellectual disability. Other eye abnormalities such as pendular nystagmus, esotropia and ptosis may also be present. Additional associated abnormalities include kyphoscoliosis, anteverted pinnae with minimal convolutions, diastema of the incisors and congenital pes varus. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, autosomal recessive, syndromic intellectual disability disorder characterized by global development delay, mild microcephaly, mild to severe intellectual disability and non-specific facial dysmorphism in association with variable multiple congenital anomalies including congenital heart defects, dental anomalies, cryptorchidism, renal and cerebral malformations. Short stature is frequent. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, X-linked syndromic intellectual disability disorder characterized by severe intellectual disability, microcephaly, post-natal growth retardation, severe visual impairment or blindness (due to optic atrophy), severe hearing defect, spasticity, epileptic seizures, restricted large-joint movements and early death (in infancy or early childhood). Facial dysmorphic features (large dysplastic ears and short broad nose) are additionally observed. There have been no further descriptions in the literature since 1993. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay and intellectual disability, infantile hypotonia, microcephaly, movement disorder, and impaired balance. More variable manifestations are hearing loss, cortical visual impairment, abnormalities of fingers and/or toes, congenital cardiac anomalies, kyphoscoliosis, dysmorphic facial features, abnormal sleep pattern, and seizures, among others. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by infantile onset of global developmental delay, severe intellectual disability, growth deficiency, microcephaly, strabismus, blue-gray sclerae, and extensive Mongolian spots. Some patients also present with epilepsy. Brain imaging may demonstrate variable abnormalities including cerebral atrophy, thin corpus callosum, ventriculomegaly, or arachnoid cysts. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, neurodevelopmental disorder with primordial microcephaly characterized by primary microcephaly, moderate to severe intellectual disability, and global developmental delay. Variable brain malformations are common ranging from simplified gyration, to cortical malformations such as pachygyria, polymicrogyria, reduced sulcation and midline defects. Craniofacial dysmorphism (e.g. sloping forehead, high and broad nasal bridge) are related to the primary microcephaly. Short stature is frequently observed and may be severe. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| X-linked microcephaly-growth retardation-prognathism-cryptorchidism syndrome is a rare syndromic intellectual disability characterized by hypotonia, microcephaly, severe developmental delay, seizures, intellectual disability, growth retardation, cardiac septal defects, cryptorchidism, hypospadias, and dysmorphic features - prominent ears, prognathism, thin upper lip, dental crowding. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare bone disease and a form of microcephalic primordial dwarfism characterised by severe pre- and postnatal growth retardation, with marked microcephaly in proportion to body size, skeletal dysplasia, abnormal dentition, insulin resistance, and increased risk for cerebrovascular disease. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by congenital microcephaly, severe intellectual disability, hypertonia at birth lessening with age, ataxia, and specific dysmorphic facial features including hirsutism, low anterior hairline and bitemporal narrowing, arched, thick, and medially sparse eyebrows, long eyelashes, lateral upper eyelids swelling and a skin fold partially covering the inferior eyelids, low-set posteriorly rotated protruding ears, anteverted nares, and a full lower lip. Brain imaging shows partial to almost complete agenesis of the corpus callosum and variable degrees of cerebellar hypoplasia. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by severe pre- and postnatal growth failure with short stature and microcephaly, facial dysmorphism (including a small jaw and prominent midface), severe insulin resistance, fatty liver, and hypertriglyceridemia developing in childhood, and primary gonadal failure. Mild global learning difficulties and acanthosis nigricans have also been reported. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by congenital microcephaly, infantile-onset epileptic encephalopathy, and profound developmental delay. Additional reported features include cortical visual impairment, sensorineural hearing loss, increased muscle tone, limb contractures, scoliosis, and dysmorphic features like midface hypoplasia, narrow forehead, short nose, narrowed nasal bridge, and small chin. Brain imaging may show thin corpus callosum and delayed myelination. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, genetic, syndromic intellectual disability characterized by intrauterine growth retardation, microcephaly, hypotonia, motor and neurodevelopmental delay, speech delay, intellectual disability, and mild dysmorphic features. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare autosomal recessive microcephalic primordial dwarfism characterized by congenital microcephaly and craniofacial features associated with a spectrum of limb abnormalities ranging from mild to severe. Short stature is frequently observed and often is severe. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| NDE1-related microhydranencephaly is a rare, hereditary syndrome with a central nervous system malformation as major feature characterized by extreme microcephaly and growth restriction, severe motor delay and mental retardation, and typical radiological findings of gross dilation of the ventricles resulting from the absence (or severe delay in the development) of cerebral hemispheres, hypoplasia of the corpus callosum, cerebellum, and brainstem. Associated features are thin bones and scalp rugae. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare, autosomal recessive, multiple congenital anomalies/dysmorphic syndrome characterized mainly by developmental delay, variable intellectual disability, microcephaly, cerebellar hypoplasia, dysmorphic features (central incisors macrodontia and slender fingers), short stature and variable congenital anomalies. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by microcephaly, global developmental delay, intellectual disability, abnormal muscle tone, and sensorineural hearing impairment. Additional variable manifestations include epilepsy, cortical visual impairment, gastrointestinal disturbances, growth restriction, scoliosis, as well as immunodeficiency and thrombocytopenia. Brain imaging may show cerebral atrophy, thin corpus callosum, and hypomyelination. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by a highly variable phenotype comprising ocular anomalies (congenital glaucoma, myopia, retinal detachment, and/or Axenfeld-Rieger anomaly), congenital hypothyroidism, hearing loss, microcephaly, dental defects, kidney anomalies, cerebrovascular anomalies, and distal limb anomalies. Dysmorphic facial features may include square face with prominent jaw, broad flat nasal bridge, short philtrum, and prominent ears. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare primary bone dysplasia characterized by microcephaly, developmental delay and intellectual disability, sensorineural hearing loss, retinal degeneration, and skeletal dysplasia. Musculoskeletal abnormalities include delayed ossification of epiphyses, spondyloepimetaphyseal dysplasia, short stature, severe spinal deformities, and severe joint laxity resulting in multiple joint dislocations. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome with characteristics of microcephaly, severe global developmental delay and intellectual disability, hypotonia, respiratory insufficiency, failure to thrive, and congenital anomalies affecting the skeleton, eyes, and several organ systems. Seizures and hearing loss are sometimes observed. Independent ambulation and meaningful speech are not attained. Common dysmorphic facial features include small forehead, biparietal narrowing, flat face, hypertelorism, arched eyebrows, short, upslanting palpebral fissures, wide nasal bridge, small, upturned nose, forward facing ears, and micrognathia. Brain imaging shows structural abnormalities in all patients. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A form of pontocerebellar hypoplasia characterised by severe, progressive microcephaly and severe global developmental delay apparent from birth, severe intellectual disability with lack of social interactions and absence of speech, and pontocerebellar hypoplasia and complete or partial agenesis of the corpus callosum on brain imaging. In addition, affected individuals often present hypotonia, spastic tetraplegia, and early-onset seizures. Chronic anaemia and thrombocytopenia have also been reported. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare constitutional aplastic anaemia characterised by aplastic anaemia, intellectual disability, short stature, and microcephaly. Skin pigmentation or cafe au lait spots are often present. Majority of the patients present global developmental delay with impaired motor skills, learning disabilities, speech delay whereas some patients also may have behavioural problems including autistic features. Patients often develop premalignant myelodysplastic syndromes or leukaemia. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by central nervous system abnormalities (particularly cerebellar hypoplasia), congenital microcephaly, intellectual disability, severe neurodevelopmental delay, growth impairment, dystonia, eye abnormalities (particularly cataract whereas retinal dystrophy and Leber congenital amaurosis are also reported) and congenital dyserythropoietic anemia. Additional clinical features may include other structural brain abnormalities (such as cerebral atrophy, basal ganglia atrophy, brainstem hypoplasia), feeding difficulties, sleep disturbances, hepatomegaly, and sensorineural deafness. |
Is a |
True |
A rare neurological disorder characterized by a reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems. |
Inferred relationship |
Some |
|
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