Inbound Relationships |
Type |
Active |
Source |
Characteristic |
Refinability |
Group |
Tetrasomy 21 is an extremely rare autosomal anomaly resulting from the presence of 4 copies of chromosome 21, characterized by features of trisomy 21 including developmental delay/intellectual disability, muscular hypotonia, short neck with redundant skin, brachycephaly, microcephaly, flat face, epicanthus, upslanted palpebral fissures, small ears, protruding tongue, single transverse palmar crease, brachydactyly, hypoplastic iliac wings, together with additional features such as prematurity, intrauterine growth retardation, high and broad forehead, hypertelorism. Hematological malignancies are also associated and may occur earlier than in trisomy 21. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Distal 17p13.3 microdeletion syndrome is a rare partial monosomy of the short arm of chromosome 17 with a variable phenotype characterized by prenatal and postnatal growth retardation, developmental delay, mild intellectual disability, macrocephaly, mild facial dysmorphisms including prominent forehead, hypertelorism, thick upper and/or lower lip vermillion, and structural abnormalities of the brain variably including white matter abnormalities, prominent Virchow-Robin spaces, Chiari I malformation, corpus callosum hypoplasia, but no lissencephaly. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Verloove Vanhorick-Brubakk syndrome is a multiple congenital anomalies/dysmorphic syndrome characterized by multiple skeletal malformations (short femora and humeri, bilateral absence of metatarsal and metacarpal bone in hands and feet, bilateral partial syndactyly of fingers and toes or oligopolysyndactyly, deformed lumbosacral spine), congenital heart disease (truncus arteriosus), lung and urogenital malformations (bilateral bilobar lungs, horseshoe kidney, cryptorchidism), and facial malformations (bilateral cleft lip and palate, micrognathia, small, low-set ears without external meatus). It is lethal in the neonatal period. There have been no further descriptions in the literature since 1981. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
3 |
7p22.1 microduplication syndrome is a rare chromosomal anomaly syndrome, resulting from a partial interstitial microduplication of the short arm of chromosome 7, characterized by intellectual disability, psychomotor and speech delays, craniofacial dysmorphism (including macrocephaly, frontal bossing, hypertelorism, abnormally slanted palpebral fissures, anteverted nares, low-set ears, microretrognathia) and cryptorchidism. Cardiac (e.g., patent foramen ovale and atrial septal defect), as well as renal, skeletal and ocular abnormalities may also be associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Xq12-q13.3 duplication syndrome is a rare chromosomal anomaly syndrome, resulting from the partial duplication of the long arm of chromosome X, characterized by global developmental delay, autistic behavior, microcephaly and facial dysmorphism (including down-slanting palpebral fissures, depressed nasal bridge, anteverted nares, long philtrum, down-slanting corners of the mouth). Seizures have also been reported in some patients. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
9p13 microdeletion syndrome is a rare chromosomal anomaly syndrome, resulting from a partial interstitial deletion of the short arm of chromosome 9, characterized by mild to moderate developmental delay, hand tremors, myoclonic jerks, attention deficit-hyperactivity disorder and a social personality. Patients also present bruxism, short stature and minor facial dysmorphic features (e.g., bilateral epicanthic folds, broad, flat nasal bridge, anteverted nares, low-set ears micro/retro-gnathia). |
Occurrence |
True |
Congenital |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
5 |
Progressive external ophthalmoplegia-myopathy-emaciation syndrome is a rare mitochondrial oxidative phosphorylation disorder due to nuclear DNA anomalies characterized by progressive external ophthalmoplegia without diplopia, cerebellar atrophy, proximal skeletal muscle weakness with generalized muscle wasting, profound emaciation, respiratory failure, spinal deformity and facial muscle weakness (manifesting with ptosis, dysphonia, dysphagia and nasal speech). Intellectual disability, gastrointestinal symptoms (e.g. nausea, abdominal fullness, and loss of appetite), dilated cardiomyopathy and renal colic have also been reported. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
3 |
X-linked agammaglobulinemia |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
X-linked agammaglobulinemia with growth hormone deficiency |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Autosomal recessive spastic paraplegia type 21 is a complex type of hereditary spastic paraplegia characterized by an onset in adolescence or adulthood of slowly progressive spastic paraparesis associated with the additional manifestations of apraxia, cognitive and speech decline (leading to dementia and akinetic mutism in some cases), personality disturbances and extrapyramidal (e.g. oromandibular dyskinesia, rigidity) and cerebellar (i.e. dysdiadochokinesia and incoordination) signs. Subtle abnormalities (e.g. developmental delays) may be noted earlier in childhood. A thin corpus callosum and white matter abnormalities are equally reported on magnetic resonance imaging. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
2 |
Autosomal recessive spastic paraplegia type 43 is a rare, complex hereditary spastic paraplegia characterized by a childhood to adolescent onset of progressive lower limb spasticity, associated with mild to severe gait disturbances, extensor plantar responses, muscle weakness and severe distal atrophy, frequently with upper limb involvement. Additional features may include joint contractures, distal sensory loss and brisk or absent deep tendon reflexes. Other signs, such as depression, memory loss, optic atrophy (with vision loss) and brain iron deposition (revealed by brain imagery), have also been reported. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
2 |
A chromosomal condition occurring when a piece of the long (q) arm of chromosome 18 is missing near the centre of the chromosome. The disease has a wide range of characteristics including developmental delay, intellectual disability, delayed expressive language skills, recurrent seizures and hypotonia. Macrocephaly may also be associated along with characteristic facial features including prominent forehead, ptosis, downslanting palpebral fissures, puffy periorbital tissue, and full cheeks. Most cases of proximal 18q deletion syndrome are the result of a new (de novo) deletion and are not inherited from a parent. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Branchiootic syndrome is a rare, genetic multiple congenital anomalies syndrome characterized by second branchial arch anomalies (branchial cysts and fistulae), malformations of the outer, middle and inner ear associated with sensorineural, mixed or conductive hearing loss, and the absence of renal abnormalities. Typical ear findings consist of malformed auricles (e.g. lop or cupped ears), preauricular pits and/or tags, and middle and/or inner ear dysplasias (including cochlear, vestibular and semicircular channel hypoplasia, malformation of the ossicles and of middle ear space). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Autosomal recessive myogenic arthrogryposis multiplex congenita is a rare inherited neuromuscular disease characterized by prenatal presentation (usually in the second trimester) of reduced fetal movements and abnormal positioning resulting in joint abnormalities that may involve both lower and upper extremities and is usually symmetric, severe hypotonia at birth with bilateral club foot, motor development delay, mild facial weakness without ophthalmoplegia, absent deep tendon reflexes, normal motor and sensory nerve conduction velocities, no cerebellar or pyramidal involvement, and progressive disease course with loss of ambulation after the first decade of life. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
4 |
A rare hereditary demyelinating motor and sensory neuropathy characterized by slowed nerve conduction velocities, in the absence of clinically apparent neurological deficits, gait abnormalities or muscular atrophy, associated with a germline mutation in the ARGHEF10 gene. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Tibial hemimelia-polysyndactyly-triphalangeal thumb syndrome is a rare, genetic dysostosis syndrome, with marked inter- and intra-familial variation, typically characterized by triphalangeal thumbs, hand and/or foot polysyndactyly and/or absent/hypoplastic tibiae (associated with duplication of fibulae in some cases), although isolated triphalangeal thumbs have also been reported. It is often accompanied with remarkable short stature and additional features may include radio-ulnar synostosis and hand oligodactyly, as well as abnormal carpal and metatarsal bones. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Laing distal myopathy, also called myopathy distal, type 1 (MPD1), is characterized by early-onset selective weakness of the great toe and ankle dorsiflexors, and a very slowly progressive course. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
2 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Colobomatous microphthalmia is a developmental disorder of the eye characterized by unilateral or bilateral microphthalmia associated with ocular coloboma. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Fundus albipunctatus is a rare, genetic retinal dystrophy disorder characterized by the presence of numerous small, round, yellowish-white retinal lesions that are distributed throughout the retina but spare the fovea. Patients present in childhood with non-progressive night blindness with prolonged cone and rod adaptation times. The macula may or may not be involved, which may result in a decrease of central visual acuity with age. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Congenital muscular dystrophy type 1B is a rare, genetic neuromuscular disorder characterized by proximal and symmetrical muscle weakness (particularly of neck, sternomastoid, facial and diaphragm muscles), spinal rigidity, joint contractures (Achilles tendon, elbows, hands), generalized muscle hypertrophy and early respiratory failure (usually in the first decade of life). Patients typically present delayed motor milestones and grossly elevated serum creatine kinase levels, and with disease progression, forced expiratory abdominal squeeze and nocturnal hypoventilation. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
2 |
Congenital myopathy with internal nuclei and atypical cores is a rare genetic skeletal muscle disease characterized by neonatal hypotonia, distal more than proximal muscle weakness, progressive exercise intolerance with prominent myalgias, and mild-to-moderate overall motor impairment with preserved ambulation. Face, extraocular, cardiac, and respiratory muscles are unaffected. Mild cognitive impairment is also noted in most patients. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Laubry-Pezzi syndrome is a rare, non-syndromic, congenital heart malformation characterized by the prolapse of an aortic valve cusp into a subjacent ventricular septal defect due to Venturi effect, resulting in aortic regurgitation. Patients typically present with symptoms of progressive aortic valve insufficiency, such as shortness of breath, heart palpitations, chest pain and exercise intolerance. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
King-Denborough syndrome is a rare genetic non-dystrophic myopathy characterized by the triad of congenital myopathy, dysmorphic features and susceptibility to malignant hyperthermia. Patients present with a wide phenotypic range, including delayed motor development, muscle weakness and fatigability, ptosis and facies myopathica (with or without creatine kinase elevations), skeletal abnormalities (e.g. short stature, scoliosis, kyphosis, lumbar lordosis and pectus carinatum/excavatum), mild dysmorphic facial features (e.g. hypertelorism, down-slanting palpebral fissures, epicanthic folds, low set ears, micrognathia), webbing of the neck, cryptorchidism, and a susceptibility to malignant hyperthermia and/or rhabdomyolysis due to intensive physical strain, viral infection or statin use. |
Occurrence |
True |
Congenital |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Inherited isolated adrenal insufficiency due to partial CYP11A1 deficiency is a rare, genetic, chronic, primary adrenal insufficiency disorder, due to partial loss-of-function CYP11A1 mutations, characterized by early-onset adrenal insufficiency without associated abnormal external male genitalia. Patients present with signs of adrenal crisis, including electrolyte abnormalities, severe weakness, recurrent vomiting and seizures. Ultrasound reveals absent (or very small) adrenal glands. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
A rare, inherited mitochondrial disorder due to a defect in mitochondrial protein synthesis characterized by intrauterine growth retardation, metabolic decompensation with recurrent vomiting, persistent severe lactic acidosis, encephalopathy, seizures, failure to thrive, severe global developmental delay, poor eye contact, severe muscular hypotonia or axial hypotonia with limb hypertonia, hepatomegaly and/or liver dysfunction and/or liver failure, leading to fatal outcome in severe cases. Neuroimaging abnormalities may include corpus callosum thinning, leukodystrophy, delayed myelination and basal ganglia involvement. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Familial thoracic aortic aneurysm and aortic dissection is a rare genetic vascular disease characterized by the familial occurrence of thoracic aortic aneurysm, dissection or dilatation affecting one or more aortic segments (aortic root, ascending aorta, arch or descending aorta) in the absence of any other associated disease. Depending on the size, location and progression rate of dilatation/dissection, patients may be asymptomatic or may present dyspnea, cough, jaw, neck, chest or back pain, head, neck or upper limb edema, difficulty swallowing, voice hoarseness, pale skin, faint pulse and/or numbness/tingling in limbs. Patients have increased risk of presenting life threatening aortic rupture. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Mosaic trisomy 9 is a rare chromosomal anomaly syndrome, with a highly variable phenotype, principally characterized by intellectual disability, growth and developmental delay, facial dysmorphism (including microphthalmia, deep-set eyes, low-set, malformed ears, bulbous nose, high-arched palate, micrognathia) and congenital heart defects (e.g. ventricular septal defect), as well as urogenital (e.g. hypoplastic genitalia, cryptorchidism), skeletal (congenital joint dislocations or hyperflexion, scoliosis/kyphosis) and central nervous system anomalies (hydrocephalus, Dandy-Walker malformation). Pigmentary mosaic skin lesions along the lines of Blaschko are also frequently observed. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Muscle filaminopathy is a rare myofibrillar myopathy characterized by slowly progressive, proximal skeletal muscle weakness, which is initially more prominent in lower extremities and involves upper extremities with disease progression. Patients present with difficulty climbing stairs, a waddling gait, marked winging of scapula, lower back pain, paresis of limb girdle musculature, hypo-/areflexia and/or mild facial muscle weakness in rare cases. Respiratory muscle weakness is common and cardiac anomalies (conduction blocks, tachycardia, diastolic dysfunction, left ventricular hypertrophy) have been reported in some cases. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Myopathy with hexagonally cross-linked tubular arrays is a rare, congenital, non-dystrophic, mild, slowly progressive, proximal myopathy characterized by exercise intolerance and post-exercise myalgia without rhabdomyolysis, associated with highly organized hexagonally cross-linked tubular arrays in skeletal muscle biopsy. Additional features may include muscle atrophy (or diffuse hypotrophy), myalgia with or without muscular weakness, paresis of truncal and limb-girdle musculature, minimal ptosis, lumbar hyperlordosis, decreased deep tendon reflexes, contractures and pes equinovarus. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Non-distal trisomy 13q is a rare chromosomal anomaly disorder, resulting from the partial duplication of the proximal long arm of chromosome 13, with a highly variable phenotype principally characterized by increased polymorphonuclear leucocyte projections and persistence of fetal hemoglobin, as well as growth and developmental delay and craniofacial dysmorphism (including microcephaly, depressed nasal bridge, stubby nose, low-set, malformed ears, cleft lip/palate, micrognathia). Strabismus, clinodactyly and undescended testes in males may also be associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Non-distal trisomy 9q is a rare chromosomal anomaly syndrome, resulting from the partial trisomy of the long arm of chromosome 9, with a highly variable phenotype principally characterized by developmental delay, short stature, intellectual disability, and craniofacial dysmorphism (e.g. microcephaly, broad forehead, low set ears, epicanthus, prominent nose, and retrognathia). Cardiac, ocular, thyroid and esophagus defects, as well as central nervous system and behavioral/psychiatric abnormalities, have also been reported. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Biallelic mutation carriers have a mutation (not necessarily the same mutation) in both copies of a particular gene (a paternal and a maternal mutation). The RPE65 gene provides instructions for making an enzyme that is essential for normal vision and mutations in this gene result in reduced or absent levels of RPE65 activity, blocking the visual cycle and resulting in impaired vision. Almost all patients eventually progress to complete blindness. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
1 |
A pure or complex form of hereditary spastic paraplegia characterized by an onset in the first decade of life of spastic paraparesis (more prominent in lower than upper extremities) and unsteady gait, as well as increased deep tendon reflexes, amyotrophy, cerebellar ataxia, and flexion contractures of the knees, in some. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
2 |
A subtype of Charcot-Marie-Tooth disease type 4 characterized by childhood onset of severe, progressive, demyelinating sensorimotor neuropathy manifesting with distal muscle weakness and atrophy of hands and feet, distal sensory impairment (vibration and pinprick) of lower limbs, lactic acidosis, areflexia and severely reduced motor nerve conduction velocities (25 m/s or less). Patients may also present kyphoscoliosis, nystagmus, hearing loss, cerebellar ataxia and/or brain MRI abnormalities (putaminal and periaqueductal lesions). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Spheroid body myopathy is a rare form of myofibrillar myopathy characterized by predominantly proximal muscle weakness (that could be either non- or slowly progressive), associated with spheroid body inclusions (composed of myofilament material within individual muscle fibers) in skeletal muscle biopsy. Presentation is varied and may range from asymptomatic to severe muscle weakness that manifests with absent Achilles reflexes, gait abnormality and/or other motor incapacitations. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Rolandic epilepsy-speech dyspraxia syndrome is a rare, genetic epilepsy characterized by speech disorder (including a range of symptoms from dysarthria, speech dyspraxia, receptive and expressive language delay/regression and acquired aphasia to subtle impairments of conversational speech) and epilepsy (mostly focal and secondary generalized childhood-onset seizures, sometimes with aura). Mild to severe intellectual disability may also be observed. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
A rare mitochondrial DNA depletion syndrome characterized by neonatal or infantile onset of hypotonia, failure to thrive, global developmental delay, and persistent lactic acidosis. The disease course is variable and ranges from intractable diarrhea and respiratory failure with fatal outcome in early infancy to a milder phenotype with survival into childhood. Additional reported features include sensorineural hearing loss, microcephaly, seizures, pigmentary retinopathy, and renal tubulopathy. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Mosaic trisomy 5 is a rare chromosomal anomaly syndrome with a variable phenotype ranging from clinically normal to patients presenting intrauterine growth retardation, congenital heart anomalies (mainly ventricular septal defect), multiple dysmorphic features (e.g. hypertelorism, prominent nasal bridge) and other congenital anomalies (including eventration of diaphragm, agenesis of corpus callosum, cloverleaf skull, clinodactyly, anteriorly placed anus). Psychomotor development may be normal in spite of low growth parameters being associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Otofaciocervical syndrome is a rare, genetic developmental defect during embryogenesis syndrome characterized by distinct facial features (long triangular face, broad forehead, narrow nose and mandible, high arched palate), prominent, dysmorphic ears (low-set and cup-shaped with large conchae and hypoplastic tragus, antitragus and lobe), long neck, preauricular and/or branchial fistulas and/or cysts, hypoplastic cervical muscles with sloping shoulders and clavicles, winged, low, and laterally-set scapulae, hearing impairment and mild intellectual deficit. Vertebral defects and short stature may also be associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Otofaciocervical syndrome is a rare, genetic developmental defect during embryogenesis syndrome characterized by distinct facial features (long triangular face, broad forehead, narrow nose and mandible, high arched palate), prominent, dysmorphic ears (low-set and cup-shaped with large conchae and hypoplastic tragus, antitragus and lobe), long neck, preauricular and/or branchial fistulas and/or cysts, hypoplastic cervical muscles with sloping shoulders and clavicles, winged, low, and laterally-set scapulae, hearing impairment and mild intellectual deficit. Vertebral defects and short stature may also be associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Mosaic trisomy 9 is a rare chromosomal anomaly syndrome, with a highly variable phenotype, principally characterized by intellectual disability, growth and developmental delay, facial dysmorphism (including microphthalmia, deep-set eyes, low-set, malformed ears, bulbous nose, high-arched palate, micrognathia) and congenital heart defects (e.g. ventricular septal defect), as well as urogenital (e.g. hypoplastic genitalia, cryptorchidism), skeletal (congenital joint dislocations or hyperflexion, scoliosis/kyphosis) and central nervous system anomalies (hydrocephalus, Dandy-Walker malformation). Pigmentary mosaic skin lesions along the lines of Blaschko are also frequently observed. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
9p13 microdeletion syndrome is a rare chromosomal anomaly syndrome, resulting from a partial interstitial deletion of the short arm of chromosome 9, characterized by mild to moderate developmental delay, hand tremors, myoclonic jerks, attention deficit-hyperactivity disorder and a social personality. Patients also present bruxism, short stature and minor facial dysmorphic features (e.g., bilateral epicanthic folds, broad, flat nasal bridge, anteverted nares, low-set ears micro/retro-gnathia). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Right aortic arch and left descending aorta |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Mosaic trisomy 3 is a rare chromosomal anomaly syndrome with high phenotypic variability ranging from a mild phenotype presenting joint pain and laxity, mild facial dysmorphism (e.g. long facies, prominent eyes, dysplastic ears, downturned corners of the mouth, micrognathia) and no developmental delays to more severe phenotypes including short stature, intellectual disability, severe developmental delays, additional craniofacial dysmorphic features (e.g. brachycephaly, high forehead, flat midface, short neck) and hearing impairment, as well as skeletal (e.g. pectus excavatum, scoliosis), ocular (e.g. coloboma) and cardiac abnormalities. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Connective tissue disorder due to lysyl hydroxylase-3 deficiency is a rare, genetic disease, caused by lack of lysyl hydroxylase 3 (LH3) activity, characterized by multiple tissue and organ involvement, including skeletal abnormalities (club foot, progressive scoliosis, osteopenia, pathologic fractures), ocular involvement (flat retinae, myopia, cataracts) and hair, nail and skin anomalies (coarse, abnormally distributed hair, skin blistering, reduced palmar creases, hypoplastic nails). Patients also present intrauterine growth retardation, facial dysmorphism (flat facial profile, low-set ears, shallow orbits, short and upturned nose, downturned corners of mouth) and joint flexion contractures. Growth and developmental delay, bilateral sensorineural deafness, friable diaphragm and later-onset spontaneous vascular ruptures are additional reported features. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Incomplete left cleft lip and incomplete cleft of left alveolar process of maxilla |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
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). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
4 |
Renal-hepatic-pancreatic dysplasia is a rare, genetic, developmental defect during embryogenesis syndrome characterized by the triad of pancreatic fibrosis (and cysts, with a reduction of parenchymal tissue), renal dysplasia (with peripheral cortical cysts, primitive collecting ducts, glomerular cysts and metaplastic cartilage) and hepatic dysgenesis (enlarged portal areas containing numerous elongated binary profiles with a tendency to perilobular fibrosis). Situs abnormalities, skeletal anomalies and anencephaly have also been associated. Patients that survive the neonatal period present renal insufficiency, chronic jaundice and insulin-dependent diabetes. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Renal-hepatic-pancreatic dysplasia is a rare, genetic, developmental defect during embryogenesis syndrome characterized by the triad of pancreatic fibrosis (and cysts, with a reduction of parenchymal tissue), renal dysplasia (with peripheral cortical cysts, primitive collecting ducts, glomerular cysts and metaplastic cartilage) and hepatic dysgenesis (enlarged portal areas containing numerous elongated binary profiles with a tendency to perilobular fibrosis). Situs abnormalities, skeletal anomalies and anencephaly have also been associated. Patients that survive the neonatal period present renal insufficiency, chronic jaundice and insulin-dependent diabetes. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Cleft hard palate with right cleft lip and cleft of right alveolar process of maxilla (disorder) |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Double aortic arch with both patent |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Double aortic arch with left arch dominant and coarctation of right arch (disorder) |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Low set ears |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Double aortic arch with left arch dominant and atresia of right arch (disorder) |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Autosomal recessive spastic paraplegia type 43 is a rare, complex hereditary spastic paraplegia characterized by a childhood to adolescent onset of progressive lower limb spasticity, associated with mild to severe gait disturbances, extensor plantar responses, muscle weakness and severe distal atrophy, frequently with upper limb involvement. Additional features may include joint contractures, distal sensory loss and brisk or absent deep tendon reflexes. Other signs, such as depression, memory loss, optic atrophy (with vision loss) and brain iron deposition (revealed by brain imagery), have also been reported. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
1 |
Mosaic trisomy 4 is a rare autosomal anomaly, due to the presence of an extra copy of chromosome 4 in a fraction of all cells, with a variable phenotype characterized by intrauterine growth retardation, low birth weight/length/OFC, mild intellectual deficit, congenital heart defects, hypertrophic cardiomyopathy, dysmorphic features (asymmetry of the face, eyebrow anomalies, low-set, posteriorly rotated, dysplastic ears, micro-/retrognathia), characteristic thumb abnormalities (aplasia, hypoplasia) and skin abnormalities (hypo/hyperpigmentation). Delayed puberty may be associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Distal 17p13.3 microdeletion syndrome is a rare partial monosomy of the short arm of chromosome 17 with a variable phenotype characterized by prenatal and postnatal growth retardation, developmental delay, mild intellectual disability, macrocephaly, mild facial dysmorphisms including prominent forehead, hypertelorism, thick upper and/or lower lip vermillion, and structural abnormalities of the brain variably including white matter abnormalities, prominent Virchow-Robin spaces, Chiari I malformation, corpus callosum hypoplasia, but no lissencephaly. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
4 |
Cleft soft palate with bilateral cleft lip and bilateral cleft of alveolar process of maxilla (disorder) |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Branchiootic syndrome is a rare, genetic multiple congenital anomalies syndrome characterized by second branchial arch anomalies (branchial cysts and fistulae), malformations of the outer, middle and inner ear associated with sensorineural, mixed or conductive hearing loss, and the absence of renal abnormalities. Typical ear findings consist of malformed auricles (e.g. lop or cupped ears), preauricular pits and/or tags, and middle and/or inner ear dysplasias (including cochlear, vestibular and semicircular channel hypoplasia, malformation of the ossicles and of middle ear space). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
A rare, inherited mitochondrial disorder due to a defect in mitochondrial protein synthesis characterized by intrauterine growth retardation, metabolic decompensation with recurrent vomiting, persistent severe lactic acidosis, encephalopathy, seizures, failure to thrive, severe global developmental delay, poor eye contact, severe muscular hypotonia or axial hypotonia with limb hypertonia, hepatomegaly and/or liver dysfunction and/or liver failure, leading to fatal outcome in severe cases. Neuroimaging abnormalities may include corpus callosum thinning, leukodystrophy, delayed myelination and basal ganglia involvement. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
A rare, genetic neuromuscular disease characterized by progressive external ocular, facial and pharyngeal muscle weakness, leading to variable degrees of ptosis, ophthalmoparesis, facial muscle atrophy, dysarthria and dysphagia, as well as distal muscle weakness and atrophy of lower and upper extremities. Respiratory muscle involvement is common, but sensorineural hearing loss, asymmetrical extremity weakness and severe proximal weakness are rare. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
1 |
A rare, genetic neuromuscular disease characterized by progressive external ocular, facial and pharyngeal muscle weakness, leading to variable degrees of ptosis, ophthalmoparesis, facial muscle atrophy, dysarthria and dysphagia, as well as distal muscle weakness and atrophy of lower and upper extremities. Respiratory muscle involvement is common, but sensorineural hearing loss, asymmetrical extremity weakness and severe proximal weakness are rare. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
3 |
A rare, genetic neuromuscular disease characterized by progressive external ocular, facial and pharyngeal muscle weakness, leading to variable degrees of ptosis, ophthalmoparesis, facial muscle atrophy, dysarthria and dysphagia, as well as distal muscle weakness and atrophy of lower and upper extremities. Respiratory muscle involvement is common, but sensorineural hearing loss, asymmetrical extremity weakness and severe proximal weakness are rare. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
2 |
Larsen-like syndrome, B3GAT3 type is a rare, genetic, primary bone dysplasia characterized by laxity, dislocations and contractures of the joints, short stature, foot deformities (e.g. clubfeet), broad tips of fingers and toes, short neck, dysmorphic facial features (hypertelorism, downslanting palpebral fissures, upturned nose with anteverted nares, high arched palate) and various cardiac malformations. Severe disease is associated with multiple fractures, osteopenia, arachnodactyly and blue sclerae. A broad spectrum of additional features, including scoliosis, radio-ulnar synostosis, mild developmental delay, and various eye disorders (glaucoma, amblyopia, hyperopia, astigmatism, ptosis), are also reported. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Larsen-like syndrome, B3GAT3 type is a rare, genetic, primary bone dysplasia characterized by laxity, dislocations and contractures of the joints, short stature, foot deformities (e.g. clubfeet), broad tips of fingers and toes, short neck, dysmorphic facial features (hypertelorism, downslanting palpebral fissures, upturned nose with anteverted nares, high arched palate) and various cardiac malformations. Severe disease is associated with multiple fractures, osteopenia, arachnodactyly and blue sclerae. A broad spectrum of additional features, including scoliosis, radio-ulnar synostosis, mild developmental delay, and various eye disorders (glaucoma, amblyopia, hyperopia, astigmatism, ptosis), are also reported. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
3 |
Larsen-like syndrome, B3GAT3 type is a rare, genetic, primary bone dysplasia characterized by laxity, dislocations and contractures of the joints, short stature, foot deformities (e.g. clubfeet), broad tips of fingers and toes, short neck, dysmorphic facial features (hypertelorism, downslanting palpebral fissures, upturned nose with anteverted nares, high arched palate) and various cardiac malformations. Severe disease is associated with multiple fractures, osteopenia, arachnodactyly and blue sclerae. A broad spectrum of additional features, including scoliosis, radio-ulnar synostosis, mild developmental delay, and various eye disorders (glaucoma, amblyopia, hyperopia, astigmatism, ptosis), are also reported. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Chondroectodermal dysplasia |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Chondroectodermal dysplasia |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Isolated agammaglobulinemia (IA) is the non-syndromic form of agammaglobulinemia, a primary immunodeficiency disease, and is characterized by deficient gamma globulins and associated predisposition to frequent and recurrent infections from infancy. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
A pure form of hereditary spastic paraplegia characterized by a childhood- to adulthood-onset of slowly progressive spastic gait, extensor plantar responses, brisk tendon reflexes in arms and legs, decreased vibration sense at ankles and urinary dysfunction. Ankle clonus is also reported in some patients. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
1 |
A pure form of hereditary spastic paraplegia characterized by a childhood- to adulthood-onset of slowly progressive spastic gait, extensor plantar responses, brisk tendon reflexes in arms and legs, decreased vibration sense at ankles and urinary dysfunction. Ankle clonus is also reported in some patients. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
2 |
Dysmorphism-cleft palate-loose skin syndrome is a rare, genetic developmental defect during embryogenesis characterized by severe psychomotor delay, intellectual disability, congenital, symmetrical circumferential skin creases of arms and legs, cleft palate, and facial dysmorphism (including elongated face, high forehead, blepharophimosis, short palpebral fissures, microphthalmia, microcornea, epicanthic folds, telecanthus, microtia, posteriorly angulated ears, broad nasal bridge, microstomia and micrognathia). Additional features reported include short stature, microcephaly, hypotonia, pectus excavatum, severe scoliosis, hypoplastic scrotum, and mixed hearing loss. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Dysmorphism-cleft palate-loose skin syndrome is a rare, genetic developmental defect during embryogenesis characterized by severe psychomotor delay, intellectual disability, congenital, symmetrical circumferential skin creases of arms and legs, cleft palate, and facial dysmorphism (including elongated face, high forehead, blepharophimosis, short palpebral fissures, microphthalmia, microcornea, epicanthic folds, telecanthus, microtia, posteriorly angulated ears, broad nasal bridge, microstomia and micrognathia). Additional features reported include short stature, microcephaly, hypotonia, pectus excavatum, severe scoliosis, hypoplastic scrotum, and mixed hearing loss. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Craniofaciofrontodigital syndrome is a rare multiple congenital anomalies syndrome characterized by mild intellectual disability, short stature, cardiac anomalies, mild dysmorphic features (macrocephaly, prominent forehead, hypertelorism, exophthalmos), cutis laxa, joint hyperlaxity, wrinkled palms and soles and skeletal anomalies (sella turcica, wide ribs and small vertebral bodies). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Craniofaciofrontodigital syndrome is a rare multiple congenital anomalies syndrome characterized by mild intellectual disability, short stature, cardiac anomalies, mild dysmorphic features (macrocephaly, prominent forehead, hypertelorism, exophthalmos), cutis laxa, joint hyperlaxity, wrinkled palms and soles and skeletal anomalies (sella turcica, wide ribs and small vertebral bodies). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
A multiple congenital anomalies syndrome characterized by wormian bones, dextrocardia and short stature due to a growth hormone deficiency. Additional manifestations that have been reported include brachycamptodactyly, kidney hypoplasia, bilateral cryptorchidism, midshaft hypospadias, imperforate anus/anorectal agenesis, body asymmetry, mild developmental delay, hemimegalencephaly and facial dysmorphism (hypotelorism, downslanting palpebral fissures, low-set and posteriorly angulated ears, depressed nasal bridge, and microstomia). |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Multiple epiphyseal dysplasia, with severe proximal femoral dysplasia is a rare primary bone dysplasia characterized by severe, early-onset dysplasia of the proximal femurs, with almost complete absence of the secondary ossification centers and abnormal development of the femoral necks (short and broad with irregular metaphyses). It is associated with gait abnormality, mild short stature, arthralgia, joint stiffness with limited mobility of the hips and irregular acetabula, and hip and knee pain. Coxa vara and mild spinal changes are also associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Multiple epiphyseal dysplasia, with severe proximal femoral dysplasia is a rare primary bone dysplasia characterized by severe, early-onset dysplasia of the proximal femurs, with almost complete absence of the secondary ossification centers and abnormal development of the femoral necks (short and broad with irregular metaphyses). It is associated with gait abnormality, mild short stature, arthralgia, joint stiffness with limited mobility of the hips and irregular acetabula, and hip and knee pain. Coxa vara and mild spinal changes are also associated. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Cleft soft palate with left cleft lip and cleft of left alveolar process of maxilla (disorder) |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Craniodigital syndrome - intellectual deficit is characterized by syndactyly of the fingers and toes, characteristic facies (startled facial expression with a small, pointed nose, micrognathia, long dark eyelashes and prominent eyebrows) and intellectual deficit. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Dislocation of the hip-dysmorphism syndrome is a rare multiple congenital anomalies syndrome characterized by bilateral congenital dislocation of the hip, characteristic facial features (flat mid-face, hypertelorism, epicanthus, puffiness around the eyes, broad nasal bridge, carp-shaped mouth), and joint hyperextensibility. Congenital heart defects, congenital dislocation of the knee, congenital inguinal hernia, and vesicoureteric reflux have also been reported. There have been no further descriptions in the literature since 1995. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
A rare multisystemic genetic disorder characterized by characteristic facial features with macrocephaly, overgrowth in infancy, intellectual disability and behavioral problems including anxieties and aggressiveness. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Spina bifida-hypospadias syndrome is a rare developmental defect during embryogenesis disorder characterized by the specific association of glandular hypospadias and lumbo-sacral spina bifida. Affected individuals may or may not present additional congenital anomalies, such as hydrocephaly, microstomia, patent ductus arteriosus, cryptorchidism, intestinal malrotation, rocker-bottom feet, and hypertrichosis. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
5 |
Spina bifida-hypospadias syndrome is a rare developmental defect during embryogenesis disorder characterized by the specific association of glandular hypospadias and lumbo-sacral spina bifida. Affected individuals may or may not present additional congenital anomalies, such as hydrocephaly, microstomia, patent ductus arteriosus, cryptorchidism, intestinal malrotation, rocker-bottom feet, and hypertrichosis. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
3 |
Spina bifida-hypospadias syndrome is a rare developmental defect during embryogenesis disorder characterized by the specific association of glandular hypospadias and lumbo-sacral spina bifida. Affected individuals may or may not present additional congenital anomalies, such as hydrocephaly, microstomia, patent ductus arteriosus, cryptorchidism, intestinal malrotation, rocker-bottom feet, and hypertrichosis. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
Spina bifida-hypospadias syndrome is a rare developmental defect during embryogenesis disorder characterized by the specific association of glandular hypospadias and lumbo-sacral spina bifida. Affected individuals may or may not present additional congenital anomalies, such as hydrocephaly, microstomia, patent ductus arteriosus, cryptorchidism, intestinal malrotation, rocker-bottom feet, and hypertrichosis. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Spina bifida-hypospadias syndrome is a rare developmental defect during embryogenesis disorder characterized by the specific association of glandular hypospadias and lumbo-sacral spina bifida. Affected individuals may or may not present additional congenital anomalies, such as hydrocephaly, microstomia, patent ductus arteriosus, cryptorchidism, intestinal malrotation, rocker-bottom feet, and hypertrichosis. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
4 |
KLHL9-related early-onset distal myopathy is a rare, genetic distal myopathy characterized by slowly progressive distal limb muscle weakness and atrophy (beginning with anterior tibial muscle involvement followed by the intrinsic hand muscles) in association with reduced sensation in a stocking-glove distribution. Patients present with high stepping gait, ankle areflexia and contractures in the first to second decade of life, associated with marked ankle extensor muscle atrophy; later proximal muscle involvement is moderate and ambulation is preserved throughout the life. |
Occurrence |
False |
Congenital |
Inferred relationship |
Some |
1 |
Symbrachydactyly of digit of hand (disorder) |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Spondyloperipheral dysplasia-short ulna syndrome is a rare, genetic, primary bone dysplasia, with highly variable phenotype, typically characterized by platyspondyly, brachydactyly type E changes (short metacarpals and metatarsals, short distal phalanges in hands and feet), bilateral short ulnae and mild short stature. Other reported features include additional skeletal findings (e.g. midface hypoplasia, degenerative changes in proximal femora, limited elbow extension, bilateral sacralization of L5, clubfeet), as well as myopia, hearing loss, and intellectual disability. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
Mosaic trisomy 14 is a rare chromosomal anomaly disorder, with a highly variable phenotype, principally characterized by growth and developmental delay, intellectual disability, body asymmetry/hypotonia, congenital heart defects, genitourinary abnormalities (cryptorchidism, micropenis, large clitoris, labial swelling), and abnormal skin hyperpigmentation. Patients usually present with craniofacial dysmorphism such as microcephaly, abnormal palpebral fissure, hypertelorism, ear abnormalities, broad nose, low-set ears, micro/retro-gnathia, and cleft or highly arched palate. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
2 |
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. |
Occurrence |
True |
Congenital |
Inferred relationship |
Some |
1 |