| Inbound Relationships |
Type |
Active |
Source |
Characteristic |
Refinability |
Group |
| Hypotonia-speech impairment-severe cognitive delay syndrome is a rare, genetic neurodegenerative disorder characterized by severe, persistent hypotonia (presenting at birth or in early infancy), severe global developmental delay (with poor or absent speech, difficulty or inability to roll, sit or walk), profound intellectual disability, and failure to thrive. Additional manifestations include microcephaly, progressive peripheral spasticity, bilateral strabismus and nystagmus, constipation, and variable dysmorphic facial features (including plagiocephaly, broad forehead, small nose, low-set ears, micrognathia and open mouth with tented upper lip). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Intellectual disability-alacrima-achalasia syndrome is a rare, genetic intellectual disability syndrome characterized by delayed motor and cognitive development, absence or severe delay in speech development, intellectual disability, and alacrima. Achalasia/dysphagia and mild autonomic dysfunction (i.e. anisocoria) have also been reported in some patients. The phenotype is similar to the one observed in autosomal recessive Triple A syndrome but differs by the presence of intellectual disability in all affected individuals. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Intellectual disability-polydactyly-uncombable hair syndrome is a multiple congenital anomalies/dysmorphic syndrome characterized by intellectual disability, postaxial polydactyly, phalangeal hypoplasia, 2-3 toe syndactyly, uncombable hair and facial dysmorphism (including frontal bossing, hypotelorism, narrow palpebral fissures, nasal bridge and lips, prominent nasal root, large abnormal ears with prominent antihelix, poorly folded helix, underdeveloped lobule and antitragus, and micrognathia evolving into prognathism). Cryptorchidism, conductive hearing loss and progressive thoracic kyphosis were also reported. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| Intellectual disability-spasticity-ectrodactyly syndrome is a rare intellectual disability syndrome characterized by severe intellectual disability, spastic paraplegia (with wasting of the lower limbs) and distal transverse defects of the limbs (e.g. ectrodactyly, syndactyly, clinodactyly of the hands and/or feet). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| Intellectual disability-brachydactyly-Pierre Robin syndrome is a rare developmental defect during embryogenesis syndrome characterized by mild to moderate intellectual disability and psychomotor delay, Robin sequence (including severe micrognathia and soft palate cleft) and distinct dysmorphic facial features (e.g. synophrys, short palpebral fissures, hypertelorism, small, low-set, and posteriorly angulated ears, bulbous nose, long/flat philtrum, and bow-shaped upper lip). Skeletal anomalies, such as brachydactyly, clinodactyly, small hands and feet, and oral manifestations (e.g. bifid, short tongue, oligodontia) are also associated. Additional features reported include microcephaly, capillary hemangiomas on face and scalp, ventricular septal defect, corneal clouding, nystagmus and profound sensorineural deafness. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Intellectual disability, Wolff type is a rare intellectual disability syndrome characterized by severe intellectual disability, characteristic facial features (low anterior hairline, upward slanting palpebral fissures, ocular hypertelorism, broad, bulbous nose, large ears with helix incompletely developed, thick lips, and micrognathia) and additional anomalies including peripheral joint contractures, delayed skeletal maturation, bilateral cleft lip and palate, strabismus, terminal hypoplasia of fingers, hypospadias, and bilateral inguinal hernias. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Macrocephaly-developmental delay syndrome is a rare, intellectual disability syndrome characterized by macrocephaly, mild dysmorphic features (frontal bossing, long face, hooded eye lids with small, downslanting palpebral fissures, broad nasal bridge, and prominent chin), global neurodevelopmental delay, behavioral abnormalities (e.g. anxiety, stereotyped movements) and absence or generalized tonic-clonic seizures. Additional features reported in some patients include craniosynostosis, fifth finger clinodactyly, recurrent pneumonia, and hepatosplenomegaly. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| A rare multisystemic genetic disorder characterized by characteristic facial features with macrocephaly, overgrowth in infancy, intellectual disability and behavioral problems including anxieties and aggressiveness. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| Corpus callosum agenesis-abnormal genitalia syndrome is a rare, genetic developmental defect during embryogenesis syndrome characterized by agenesis of the corpus callosum, mild to severe neurological manifestations (intellectual disability, developmental delay, epilepsy, dystonia), and urogenital anomalies (hypospadias, cryptorchidism, renal dysplasia, ambiguous genitalia). Additionally, skeletal anomalies (limb contractures, scoliosis), dysmorphic facial features (prominent supraorbital ridges, synophrys, large eyes) and optic atrophy have been observed. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
8 |
| A rare, genetic neurological disorder characterized by the presence of diffuse pachygyria and arachnoid cysts, psychomotor developmental delay and intellectual disability. Seizures (absence, atonic and generalized tonic-clonic) and, on occasion, headache are also associated. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, short stature, skeletal abnormalities (such as brachydactyly and vertebral anomalies), obesity, cardiac, respiratory, and genitourinary anomalies, and dysmorphic facial features (including coarse facies, thick eyebrows, synophrys, hypertelorism, short, upturned nose, and long philtrum). Additional reported manifestations are microcephaly, hearing impairment, cataract, and gastroesophageal reflux. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
7 |
| Intellectual disability, Birk-Barel type is a rare, genetic, syndromic intellectual disability characterized by congenital central hypotonia, developmental delay, moderate to severe intellectual disability and subtle dysmorphic features which evolve over time (dolichocephaly, myopathic facies, ptosis, short and broad philtrum, tented upper lip vermillion, palatal anomalies, mild micro- and/or retrognathia). Patients present reduced facial movements, lethargy, weak cry, transient neonatal hypoglycemia, severe feeding difficulties and failure to thrive. Dysphagia, particularly of solid food, asthenic body build, joint contractures and scoliosis are additional features. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Cryptorchidism-arachnodactyly-intellectual disability syndrome is a rare, multiple congenital anomalies syndrome characterized by psychomotor delay, severe intellectual deficit, severe muscle hypoplasia (with absence of subcutaneous fatty tissue), generalized contractures, craniofacial dysmorphic features (dolichocephaly, esotropia, ears of unequal size, high palate), chest and spinal deformities (i.e. sternum shifted to side, kyphoscoliosis), pulmonary anomalies (unilateral hypoplastic bronchial system), arachnodactyly, and genital abnormalities (cryptorchidism, hypospadias, testicular agenesis). Repeated respiratory tract infections and atelectasis are also associated. There have been no further descriptions in the literature since 1970. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Intellectual disability-myopathy-short stature-endocrine defect syndrome is a rare congenital myopathy syndrome characterized by nonprogressive myopathy (manifesting with mild facial and generalized weakness, bilateral ptosis, and severe lumbar lordosis), severe intellectual disability, short stature, and sexual infantilism (due to hypogonadotropic hypogonadism). The presence of a small pituitary fossa was also noted. There have been no further descriptions in the literature since 1985. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| Focal epilepsy-intellectual disability-cerebro-cerebellar malformation is a rare, genetic neurological disorder characterized by early infantile-onset of seizures, borderline to moderate intellectual disability, cerebellar features including dysarthria and ataxia and cerebellar atrophy and cortical thickening observed on MRI imaging. Seizures are typically focal (with prominent eye blinking, facial and limb jerking), precipitated by fever and often commence with an oral sensory aura (anesthetized tongue sensation). When not properly controlled by anti-epileptic medication, weekly frequency and persistence into adult life is observed. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Disease with characteristics of recurrent seizures, encephalopathy and intellectual disability with onset of symptoms typically beginning in infancy. Seizures may be refractory and intellectual disability may be mild to severe. Sudden unexpected death in epilepsy may occur in rare cases. The disease is caused by mutations in the SCN8A gene, which provides instructions for making the alpha subunit of Nav1.6. Follows an autosomal dominant pattern of inheritance however most cases of this condition result from de novo mutation. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A neurological disorder with characteristics of moderate to severe developmental delay and intellectual disability and mild dysmorphic features. Early symptoms include hypotonia, delayed development of motor skills, speech delay, hypertelorism, broad nasal bridge, and fingers with tapered ends. Other features include microcephaly, seizures, recurrent ear infections, strabismus, amblyopia and hyperopia. Behavioral problems such as hyperactivity, attention deficit disorder, aggression, anxiety and autism spectrum occur in some cases. Caused by mutations in the HIVEP2 gene leading to a shortage of functional HIVEP2 protein. Inherited in an autosomal dominant pattern however most cases of this condition result from de novo mutations in the gene. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| X-linked intellectual disability-hypogonadism-ichthyosis-obesity-short stature syndrome is a rare X-linked intellectual disability syndrome characterized by intellectual disability associated with short stature, obesity, primary hypogonadism and an ichthyosiform skin condition. There have been no further descriptions in the literature since 1982. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| Brachydactyly-mesomelia-intellectual disability-heart defects syndrome is a rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by developmental delay, intellectual disability, thin habitus with narrow shoulders, mesomelic shortness of the arms, craniofacial dysmorphism (e.g. long lower face, maxillary hypoplasia, beak nose, short columella, prognathia, high arched palate, obtuse mandibular angle), brachydactyly (mostly involving middle phalanges) and cardiovascular anomalies (i.e. aortic root dilatation, mitral valve prolapse). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
7 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| A rare syndromic intellectual disability characterized by global developmental delay, gastrointestinal problems, hypotonia, delayed speech, behavioral and sleep problems, pain insensitivity, seizures, structural brain anomalies, dysmorphic features, visual problems, early tooth eruption and autistic features. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Epiphyseal dysplasia-hearing loss-dysmorphism syndrome is a rare multiple congenital anomalies/dysmorphic syndrome characterized by developmental delay, intellectual disability, short stature, sensorineural hearing impairment, facial dysmorphism (including epicanthus, broad, depressed nasal bridge, broad, fleshy nasal tip, mildly anteverted nares, deep nasolabial folds, broad mouth with thin upper lip) and skeletal anomalies (including abnormally placed thumbs, brachydactyly, scoliosis, dysplastic carpal bones). Patients also present severe behavior disturbances (aggression, hyperactivity), as well as hypopigmented skin lesions and hypoplastic digital patterns. There have been no further descriptions in the literature since 1992. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
7 |
| Diencephalic-mesencephalic junction dysplasia is a rare, genetic, non-syndromic cerebral malformation characterized by severe intellectual disability, progressive postnatal microcephaly, axial hypotonia, spastic quadriparesis, seizures and facial dysmorphism (bushy eyebrows, hairy forehead, broad nasal root, long flat philtrum, V-shaped upper lip). Additionally, talipes equinovarus, non-obstructive cardiomyopathy, persistent hyperplastic primary vitreous, obstructive hydrocephalus and autistic features may also be associated. On brain magnetic resonance imaging, the butterfly sign is characteristically observed and cortical calcifications, agenesis of the corpus callosum, ventriculomegaly, brainstem dysplasia and cerebellar vermis hypoplasia have also been described. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare neurologic disease characterized by neonatal hypotonia, global developmental delay, feeding difficulties, and often seizures or seizure-like episodes. Other frequently observed signs and symptoms include variable dysmorphic features, myopathic facies, respiratory problems, and visual abnormalities, such as strabismus or esotropia. Brain imaging may show delayed myelination and other white matter abnormalities. |
Interprets |
False |
Intellectual ability |
Inferred relationship |
Some |
2 |
| déficience intellectuelle associée à PPP2R5D (protein phosphatase 2 regulatory subunit b (b56) delta) |
Interprets |
False |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare multiple congenital anomalies syndrome characterized by tall stature due to postnatal overgrowth, mild to moderate intellectual disability, joint hypermobility and subtle distinctive facial features, which often become apparent during adolescence (such as round face, low-set, thick horizontal eyebrows, narrow palpebral fissures and prominent upper-central incisors). Overweight, hypotonia, behavioral and psychiatric problems are common. Other clinical features may involve seizures, cryptorchidism and cardiovascular diseases (including congenital heart disease and aortic root dilatation). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Polymicrogyria with optic nerve hypoplasia is a rare genetic syndrome with central nervous system malformations characterized by severe developmental delay, neonatal hypotonia, seizures, optic nerve hypoplasia and distinct central nervous system malformations including extensive bilateral polymicrogyria, dysplastic or absent corpus callosum and malformed brainstem with loss of demarcation of the pontomedullary junction. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare disorder of branched-chain amino acid metabolism characterized by childhood-onset epilepsy, autism and intellectual disability with reduced levels of plasma branched chain aminoacids. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Developmental and speech delay due to SOX5 deficiency is a rare genetic syndromic intellectual disability characterized by mild to severe global developmental delay, intellectual disability and behavioral abnormalities, hypotonia, strabismus, optic nerve hypoplasia and mild facial dysmorphic features (down slanting palpebral fissures, frontal bossing, crowded teeth, auricular abnormalities and prominent philtral ridges). Other associated clinical features may include seizures and skeletal anomalies (kyphosis/scoliosis, pectus deformities). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare neurologic disease characterized by global developmental delay, intellectual disability, multiple ischemic lesions in brain MRI, behavioral abnormalities, dystonia, choreic movements and pyramidal syndrome, facial dysmorphism (hypertelorism, arched palate, macroglossia), retinitis pigmentosa, scoliosis, seizures. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| A rare partial autosomal trisomy/tetrasomy characterized by facial dysmorphism (long thin face, prominent forehead, down-slanting palpebral fissures, prominent nose with broad nasal bridge, prominent chin), pre- and postnatal overgrowth, renal anomalies (e.g. horseshoe kidney, renal agenesis, hydronephrosis), mild to severe learning difficulties and behavioral abnormalities. Additional features may include craniosynostosis and macrocephaly. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| A rare genetic syndromic intellectual disability characterized by global developmental delay and borderline to severe intellectual disability, autism spectrum disorder with obsessive behavior, stereotypies, hyperactivity but frequently friendly and affable personality, feeding difficulties, short stature, muscular hypotonia, microcephaly, characteristic dysmorphic features (hypertelorism, high arched eyebrows, ptosis, deep and/or broad nasal bridge, broad/prominent nasal tip, short and/or upturned philtrum, narrow mouth, and micrognathia), and skeletal anomalies (kyphosis and/or scoliosis, arthrogryposis, slender habitus and extremities). Other clinical features may include hernias, congenital heart defects, cryptorchidism and seizures. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, genetic, syndromic intellectual disability disorder characterized by craniofacial features, global developmental delay, intellectual disability and variable neurobehavioral abnormalities (autism spectrum disorder, aggressiveness, and self-injury). Additional features include vision abnormalities and variable sensorineural hearing loss, as well as short stature, hypotonia and gastrointestinal manifestations (e.g. poor feeding, gastroesophageal reflux, constipation). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Micro syndrome is an autosomal recessive disorder characterized by ocular and neurodevelopmental defects and by micro genitalia. It presents with severe intellectual disability, microcephaly, congenital cataract, microcornea, microphthalmia, agenesis/hypoplasia of the corpus callosum, and hypogenitalism. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| RAB18 deficiency causes two disorders with similar signs and symptoms; Warburg micro syndrome and Martsolf syndrome. Both of these diseases are considered to be part of the same disease spectrum because of similar features and shared genetic cause. Manifestations include eye problems from birth including cataracts, microphthalmia and microcornea, intellectual disability, delayed development hypotonia, spasticity and joint contractures. Martsolf syndrome affects the same body systems as Warburg micro syndrome but is usually less severe. RAB18 deficiency is caused by mutations in the RAB3GAP1, RAB3GAP2, RAB18, or TBC1D20 gene. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| A rare genetic neurodevelopmental disorder characterized by early-onset drug-resistant seizures and severe neurodevelopmental impairment with major motor development delay. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| X-linked intellectual disability-craniofacioskeletal syndrome is a rare, hereditary, syndromic intellectual disability characterized by craniofacial and skeletal abnormalities in association with mild intellectual disability in females and early postnatal lethality in males. In addition to mild cognitive impairment, females present with microcephaly, short stature, skeletal features and extra temporal lobe gyrus. In males, intrauterine growth impairment, cardiac and urogenital anomalies have been reported. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Spondyloepimetaphyseal dysplasia, Geneviève type is a rare primary bone dysplasia characterized by severe developmental delay and skeletal dysplasia (including short stature, premature carpal ossification, platyspondyly, longitudinal metaphyseal striations, and small epiphyses), as well as moderate to severe intellectual disability and facial dysmorphism, including prominent forehead, mild synophrys, depressed nasal bridge, prominent bulbous nasal tip and full lips. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| A rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by occipital atretic cephalocele associated with a specific facial dysmorphism (consisting of prominent forehead, narrow palpebral fissures, midface deficiency, narrow, malformed ears, broad nose and nasal root, grooved nasal tip and columella, laterally angulated, hypoplastic nares, short philtrum, thin upper lip, clift lip/palate, severe oligodontia, prominent chin) and large feet with sandal gap. Intellectual disability, developmental delay and hypoplastic finger and toenails have also been reported. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
6 |
| CK syndrome is a rare, genetic, X-linked syndromic intellectual disability disorder characterized by mild to severe intellectual disability, infancy-onset seizures, post-natal microcephaly, cerebral cortical malformations, dysmorphic facial features (including long, narrow face, almond-shaped palpebral fissures, epicanthic folds, high nasal bridge, malar flattening, posteriorly rotated ears, high arched palate, crowded teeth, micrognathia) and thin body habitus. Long and slim fingers/toes, strabismus, hypotonia, spasticity, optic disc atrophy, and behavioral problems (aggression, attention deficit hyperactivity disorder and irritability) are additional features. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, genetic, syndromic intellectual disability disorder with a variable phenotypic presentation typically characterized by microcephaly, severe feeding difficulties, failure to thrive, severe global development delay that frequently results in absent/poor speech, moderate to severe intellectual disability and hypotonia. Distinctive craniofacial features include prominent forehead, high-arched, thin eyebrows, hypertelorism, downslanting palpebral fissures, long, tubular nose with broad tip and prominent nasal bridge and wide mouth with full, everted lower lip. Joint laxity and ulnar deviation of wrists are also frequently observed. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, genetic immuno-osseous dysplasia associated with pre- and post-natal growth retardation, retinopathy, microcephaly, intellectual disability and dysmorphic features. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| A rare, genetic, syndromic intellectual disability disorder characterized by moderate to severe intellectual disability and esotropia. Other associated features may include growth failure (underweight, failure to thrive, short stature), microcephaly, tone abnormalities (hypotonia, spasticity), epilepsy, behavioral problems (hyperactivity, aggressiveness), and/or abnormal brain morphology, including arachnoid cyst, cerebral atrophy, mild ventriculomegaly, abnormal CNS myelination or corpus callosum agenesis. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Intellectual disability-facial dysmorphism-hand anomalies syndrome is a rare syndromic intellectual disability disorder characterized by moderate intellectual disability, variable hand abnormalities (including brachydactyly, cutaneous and osseous syndactyly), and facial dysmorphism that includes short palpebral fissures, bulbous nasal tip, thin upper and lower vermilion and broad, pointed chin. Other features, including obesity, microcephaly, short stature and a grimacing smile may be observed. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare congenital disorder of glycosylation characterized by moderate intellectual disability, short stature, mild skeletal changes and distinctive facial features with coarse face, synophrys and deep nasolabial ridges. Skeletal features include broad ribs, stocky long bones, short femoral necks with coxa valga, clinodactyly and broad thumbs. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, genetic, syndromic intellectual disability syndrome characterized by severe intellectual disability with limited or absent speech and language, short stature, acquired microcephaly, kyphoscoliosis or scoliosis, and behavioral disturbances that include hyperactivity, stereotypy and aggressiveness. Facial dysmorphism, that typically includes sloping forehead, mild synophrys, deep-set eyes, strabismus, anteverted large ears, prominent nose and dental malposition, is also characteristic. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| 9q31.1q31.3 microdeletion syndrome is a rare, genetic, syndromic intellectual disability characterized by mild intellectual disability, short stature with high body mass index, short neck with cervical gibbus and dysmorphic facial features. A metabolic syndrome, including type 2 diabetes, hypercholesterolemia and hypertension has also been reported. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| 14q24.1q24.3 microdeletion syndrome is a rare, genetic, syndromic intellectual disability characterized by mild intellectual disability, delayed speech development, congenital heart defects, brachydactyly and dysmorphic facial features. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| A rare hereditary ataxia characterized by an early onset symptomatic generalized epilepsy, progressive cerebellar ataxia resulting in significant difficulties to walk or wheelchair dependency, and intellectual disability. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| 13q12.3 microdeletion syndrome is a rare chromosomal anomaly characterized by moderate intellectual disability, speech delay, postnatal microcephaly, eczema or atopic dermatitis, characteristic facial features (malar flattening, prominent nose, underdeveloped alae nasi, smooth philtrum, and thin vermillion of the upper lip), and reduced sensitivity to pain. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| Early-onset epileptic encephalopathy-cortical blindness-intellectual disability-facial dysmorphism syndrome is a rare, syndromic intellectual disability syndrome characterized by cortical blindness, different types of seizures, intellectual disability with limited or absent speech, and dysmorphic facial features. Brain imaging typically shows mild pontine hypoplasia, hypoplasia of the corpus callosum and atrophy in the occipital region. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| A rare, genetic, syndromic intellectual disability disorder characterized by global development delay with very limited or absent speech and language, severe intellectual disability, long slender fingers, ocular abnormalities (typically strabismus or hypermetropia), and facial dysmorphism that includes a grimacing facial expression, a tubular-shaped nose with a prominent, broad base and tip, and other variable features, such as broad forehead, hypertelorism, deep-set eyes, narrow palpebral fissures, short philtrum and/or broad mouth. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| Hypohidrosis-enamel hypoplasia-palmoplantar keratoderma-intellectual disability syndrome is a rare, genetic, syndromic intellectual disability disorder characterised by severe intellectual disability with significant speech and language impairment, hypohidrosis (often resulting in hyperthermia) with normal sweat gland appearance, tooth enamel hypoplasia, palmoplantar hyperkeratosis and a high frequency of acquired microcephaly. Mild facial dysmorphism, including lateral flaring of the eyebrows, broad nasal tip, and thick vermilion border, may also be observed. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
7 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| Short ulna-dysmorphism-hypotonia-intellectual disability syndrome is a rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by mild to severe global development delay, severe intellectual disability, mild hypotonia, a short ulna, hirsutism of the face and extremities, minimal scoliosis, and facial dysmorphism, notably a tall broad forehead, synophrys, hypertelorism, malar hypoplasia, broad nose with thick alae nasi, low-set, small ears, long philtrum, thin upper lip and everted lower lip vermilion. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare genetic syndromic intellectual disability characterized by mild to moderate intellectual disability, developmental delay (with speech and language development more severely affected). Association with infantile hypotonia, seizures, cryptorchidism in males and congenital abnormalities, including cardiac, cerebral or ocular defects, may be observed. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by moderate to severe intellectual disability, congenital aphonia, hearing loss, optic atrophy, retinal dystrophy, broad thumbs and duplicated halluces. Facial dysmorphism (including thick eyebrows, ptosis, long, downslanting palpebral fissures, microstomia, low-set, posteriorly rotated ears) and genital abnormalities are also associated. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
6 |
| X-linked intellectual disability-cardiomegaly-congestive heart failure syndrome is a rare X-linked syndromic intellectual disability disorder characterized by profound intellectual disability, global developmental delay with absent speech, seizures, large joint contractures, abnormal position of thumbs and middle-age onset of cardiomegaly and atrioventricular valve abnormalities, resulting in subsequent congestive heart failure. Additional features include variable facial dysmorphism (notably large ears with overfolded helix) and large testes. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by craniofacial dysmorphism (brachycephaly resulting from craniosynostosis, frontal bossing, downslanting palpebral fissures, large and low-set ears, depressed nasal bridge, high-arched, wide palate, thin upper lip), impaired neurological development with intellectual disability, hypotonia, pyloric stenosis, pectus excavatum, bilateral cryptorchidism and short stature. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare syndromic X-linked intellectual disability characterized by cognitive impairment, behavioral and psychiatric problems, obesity, recurrent infections, atopic diseases, and distinctive facial features in males. Females are clinically asymptomatic or mildly affected, presenting mild learning difficulties and facial dysmorphism. |
Interprets |
False |
Intellectual ability |
Inferred relationship |
Some |
3 |
| A rare junctional epidermolysis bullosa subtype characterized by late-onset blistering surrounded by erythema and localized on the anterior aspect of the lower legs, associated with dystrophic toenails, tooth enamel defects and mild to severe intellectual disability. Lens subluxation and mild facial dysmorphism (with short midface, prognathism and thin upper lip vermilion) are additional reported features. There have been no further descriptions in the literature since 1992. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Deafness-onychodystrophy syndrome is a group of rare, genetic, developmental defect during embryogenesis disorders characterized by the association of sensorineural deafness and onychodystrophy (e.g. absent/hypoplastic finger and toenails), as well as brachydactyly and finger-like thumbs. Additional features present in one of the diseases comprising this group include osteodystrophy, intellectual disability, seizures, developmental delay, and distinctive facies. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
6 |
| A rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by cerebellar-like ataxia, photosensitivity (mainly of the face and trunk), short stature and intellectual disability. Additional features include clinodactyly, single palmar transverse crease, high-arched palate, pseudohypertrophy of the calves and aortic valve lesions. There have been no further descriptions in the literature since 1983. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| Rare non-syndromic intellectual disability is a rare, hereditary, neurologic disease characterized by early-onset cognitive impairment as a sole disability. The disease may be associated with autism, epilepsy and neuromuscular deficits. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| Piebald trait-neurologic defects syndrome is a rare, genetic, pigmentation anomaly of the skin syndrome characterized by ventral as well as dorsal leukoderma of the trunk and a congenital white forelock, in association with cerebellar ataxia, impaired motor coordination, intellectual disability of variable severity and progressive, mild to profound, uni- or bilateral sensorineural hearing loss. There have been no further descriptions in the literature since 1971. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, syndromic intellectual disability characterized by hypotonia, developmental delay, absent or severly delayed speech development, intellectual disability, obstructive sleep apnea, mild dysmorphic facial features and behavioral abnormalities. Epilepsy, ataxia and nystagmus have also been reported. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| FBLN1-related developmental delay-central nervous system anomaly-syndactyly syndrome is a rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by delayed motor development, intellectual disability, dysarthria, pseudobulbar signs, cryptorchidism, and syndactyly associated with a FLBN1 gene point mutation. Macular degeneration and signs of brain atrophy and spinal cord compression have also been reported. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Intellectual disability-obesity-prognathism-eye and skin anomalies syndrome is a rare, genetic, syndromic intellectual disability disorder characterized by mild to profound intellectual disability, delayed speech, obesity, ocular anomalies (blepharophimosis, blepharoptosis, hyperopic astigmatism, decreased visual acuity, strabismus, abducens nerve palsy, and/or accommodative esotropia), and dermal manifestations, such as chronic atopic dermatitis. Associated craniofacial dysmorphism includes macrocephaly, maxillary hypoplasia, mandibular prognathism, and crowding of teeth. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| A rare, genetic, syndromic intellectual disability characterized by severe intellectual disability, non-inherited, progressive, post-natal microcephaly, hypotonia, hyperkinesia, absence of speech, strabismus, and midline stereotypic hand movements (e.g. hand washing/rubbing). Additional features include developmental delay, seizures and behavioral disturbances, such as self-injury and unexplained crying episodes. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| A rare, genetic, syndromic intellectual disability disorder, with highly variable phenotype, typically characterized by mild to severe global development delay, severe speech and language impairment, mild to severe intellectual disability, dysphagia, hypotonia, relative to true macrocephaly, and behavioral problems that may include autistic features, hyperactivity, and mood lability. Facial gestalt typically features a broad, prominent forehead, hypertelorism, downslanting palpebral fissures, ptosis, a short bulbous nose with broad tip, thick vermilion border, wide, and open mouth with downturned corners. Brain, cardiac, urogenital and ocular malformations may be associated. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, genetic, epilepsy syndrome characterized by congenital alopecia, early-onset epilepsy, intellectual disability and speech delay. Large stature, delayed bone development and abnormal electroencephalogram have also been associated. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Blepharophimosis, intellectual disability syndrome (disorder) |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Woodhouse-Sakati syndrome is a multisystemic disorder characterized by hypogonadism, alopecia, diabetes mellitus, intellectual deficit and extrapyramidal signs with choreoathetoid movements and dystonia. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
6 |
| 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). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
9 |
| Biemond syndrome type 2 (BS2) is a rare genetic neurological and developmental disorder reported in a very small number of patients with a poorly defined phenotype which includes iris coloboma, short stature, obesity, hypogonadism, postaxial polydactyly, and intellectual disability. Hydrocephalus and facial dysostosis were also reported. BS2 shares features with Bardet-Biedl syndrome. There have been no further descriptions in the literature since 1997. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Blepharonasofacial syndrome is a rare otorhinolaryngological malformation syndrome characterized by a distinctive mask-like facial dysmorphism, lacrimal duct obstruction, extrapyramidal features, digital malformations and intellectual disability. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare genetic, multiple congenital malformation syndrome characterized by brain anomalies (thinning of the corpus callosum with dilatation of ventricles), intellectual disability, ectodermal dysplasia, skeletal deformities (vertebral anomalies, scoliosis, polydactyly), ear/eye anomalies (maldevelopment, small optic nerves, low set and large ears with hearing loss) and kidney dysplasia/hypoplasia. In the case that clinical manifestation is also associated to Hirschsprung disease and cleft palate or cryptorchidism, it is named as BRESHECK syndrome. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| 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. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| A rare X-linked syndromic intellectual disability characterized by variable intellectual deficit, macrocephaly, short stature, and facial dysmorphism (such as prominent forehead, prominent supraorbital ridges, hypertelorism, downslanting palpebral fissures, broad nasal tip, anteverted nostrils, thick lower lip, and localized microdontia). Additional reported features include seizures, post-pubertal macroorchidism, obesity, and short, broad hands with tapered fingers. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| Oral-facial-digital syndrome, type 9 is characterized by highly arched palate with bifid tongue and bilateral supernumerary lower canines, hamartomatous tongue, multiple frenula, hypertelorism, telecanthus, strabismus, broad and/or bifid nasal tip, short stature, bifid halluces, forked metatarsal, poly- and syndactyly, mild intellectual deficit and specific retinal abnormalities (bilateral optic disc coloboma and retinal dysplasia with partial detachment). |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
7 |
| Orofaciodigital syndrome type 11 is an extremely rare, sporadic form of Orofaciodigital syndrome with only a few reported cases, and characterized by facial (blepharophimosis, bulbous nasal tip, broad nasal bridge, downslanting palpebral fissures and low set ears) and skeletal (post-axial polydactyly and fusion of vertebrae) malformations along with severe intellectual disability, deafness and congenital heart defects. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
9 |
| Spondyloepiphyseal dysplasia Nishimura type is characterized by spondyloepiphyseal dysplasia, craniosynostosis, cataracts, cleft palate and intellectual deficit. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
5 |
| A rare, X-linked syndromic intellectual disability disorder characterized by non-progressive ataxia, apraxia, variable intellectual disability and/or visuospatial, visuographic and visuoconstructive dysfunctions in male patients. Seizures, congenital clubfoot and macroorchidism have also been associated. Partial clinical expression was noted in obligate female carriers. There have been no further descriptions in the literature since 1992. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
4 |
| An X-linked syndromic intellectual disability characterized by a few months of normal development, followed by progressive neurodegenerative course with gradual loss of vision, development of spastic tetraplegia, convulsions, microcephaly, failure to thrive, and early death. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| Fried syndrome is a rare X-linked mental retardation (XLMR) syndrome characterized by psychomotor delay, intellectual deficit, hydrocephalus, and mild facial anomalies. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| X-linked recessive intellectual disability and macrocephaly with ciliary dysfunction syndrome (disorder) |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| X-linked intellectual disability, Seemanova type is characterised by microcephaly, intellectual deficit, growth retardation and hypogenitalism. It has been described in four boys from one family. A characteristic facies and ophthalmologic anomalies were also present and included microphthalmia, microcornea and cataract. Transmission is X-linked. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| X-linked intellectual disability, Shashi type is characterized by moderate intellectual deficit, obesity, macroorchidism and a characteristic facies (large ears, a prominent lower lip and puffy eyelids). It has been described in nine boys from two families. Transmission is X-linked and the causative gene has been localized to the q21.3-q27 region of the X chromosome. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| An X-linked syndromic intellectual disability characterized by severe intellectual disability, microcephaly and short stature in male patients. Strabismus and spastic diplegia have also been described. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| X-linked intellectual disability, Siderius type is characterized by mild to borderline intellectual deficit associated with cleft lip/palate. Preaxial polydactyly, large hands and cryptorchidism are sometimes present. The syndrome has been described in seven boys from two families. Transmission is X-linked and the syndrome is caused by mutations in the PHF8 gene, localized to the p11.21 region of the X chromosome. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| X-linked intellectual disability, Stevenson type is characterized by intellectual deficit, hypotonia, absent deep tendon reflexes, tapered fingers and excessive fingerprint arches, genu valgum, a characteristic face and small teeth. It has been described in four males from two generations of one family. The causative gene appears to be located in the q13 region of the X chromosome. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| X-linked intellectual disability, Stocco Dos Santos type is characterized by severe intellectual deficit with hyperactivity, language delay, congenital hip luxation, short stature, kyphosis and recurrent respiratory infections. Aggressive behavior and frequent epileptic seizures may also be present. The syndrome has been described in four boys from the same family. Transmission is X-linked and is caused by mutations in the KIAA1202 gene, localized to the Xp11.2 region. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| X-linked intellectual disability, Stoll type is characterized by intellectual deficit, short stature and characteristic facies (hypertelorism, prominent forehead, frontal bossing, a broad nasal tip and anteverted nares). It has been described in four males from three generations of the same family. Two females from this family also displayed intellectual deficit and the characteristic facies. Transmission is X-linked. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| X-linked intellectual disability Turner type (disorder) |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
| A rare, genetic, syndromic intellectual disability characterised by developmental delay, mild to moderate intellectual disability, low birth weight, moderate to severe short stature, microcephaly and variable hypergonadotropic hypogonadism. Mild facial dysmorphism include upslanted palpebral fissures and prominent nasal bridge. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
3 |
| X-linked intellectual disability, Wilson type is characterized by severe intellectual deficit with mutism, epilepsy, growth retardation and recurrent infections. It has been described in three males from three generations of one family. The causative gene has been localized to the 11p region of the X chromosome. |
Interprets |
True |
Intellectual ability |
Inferred relationship |
Some |
2 |
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