| Inbound Relationships |
Type |
Active |
Source |
Characteristic |
Refinability |
Group |
| Amish lethal microcephaly (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Osteogenesis imperfecta, recessive perinatal lethal, with microcephaly AND cataracts |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Dentin dysplasia |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A group of rare autosomal recessive forms of ichthyosis clinically characterized by superficial, asymptomatic, spontaneous peeling of the skin and histologically by a shedding of the outer layers of the epidermis. PSS presents with either an acral (acral PSS) or a generalized distribution for generalized PSS type A (noninflammatory) or B (inflammatory). |
Is a |
False |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Xeroderma pigmentosum |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Dysmorphic sialidosis, congenital form |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Dentinogenesis imperfecta |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Curry-Hall syndrome |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| 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. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Congenital hereditary endothelial dystrophy (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Xp22.3 microdeletion syndrome is a microdeletion syndrome resulting from a partial deletion of the chromosome X. Phenotype is highly variable (depending on length of deletion), but is mainly characterized by X linked ichthyosis, mild-moderate intellectual deficit, Kallmann syndrome, short stature, chondrodysplasia punctata and ocular albinism. Epilepsy, attention deficit-hyperactivity disorder, autism and difficulties with social communication can be associated. |
Is a |
False |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A very rare lysosomal storage disease with characteristics of developmental delay of varying severity and hearing loss, but that can manifest a wide phenotypic heterogeneity. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| An X-linked retinal dystrophy characterized by choroideremia, causing in affected males progressive nyctalopia and eventual central blindness. Obesity, moderate intellectual disability and congenital mixed (sensorineural and conductive) deafness are also observed. Female carriers show typical retinal changes indicative of the choroideremia carrier state. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Xq27.3q28 duplication syndrome is a recently described syndrome characterized by short stature, hypogonadism, developmental delay and facial dysmorphism. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| 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. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| X-linked intellectual disability hypotonic face syndrome |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A recurrent subtelomeric deletion syndrome with variable clinical manifestations including intellectual deficit and dysmorphic features. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| 2p21 microdeletion syndrome without cystinuria is a rare partial autosomal monosomy characterized by weak fetal movements, severe infantile hypotonia and feeding difficulties that spontaneously improve with time, urogenital abnormalities (hypospadias or hypoplastic labia majora), global development delay, mild intellectual disability and facial dysmorphism (dolichocephaly, frontal bossing, bilateral ptosis, midface retrusion, open mouth with tented upper lip vermilion). Affected individuals have borderline elevated serum lactate but no cystinuria. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| The 2p21 microdeletion syndrome consists of cystinuria, neonatal seizures, hypotonia, severe growth and developmental delay, facial dysmorphism, and lactic acidemia. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Developmental absence of tooth |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Palmoplantar hyperkeratosis sclerodactyly syndrome (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Acromesomelic dysplasia Hunter-Thompson type (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic bone disorder characterized by ankylosis of the proximal interphalangeal joints, carpal and tarsal bone fusion, and conductive hearing loss in some patients. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare syndromic type of cerebral malformation characterized by aprosencephaly (absence of telencephalon and diencephalon), oculo-facial anomalies (i.e. ocular hypotelorism or cyclopia, malformation/absence of nasal structures, cleft lip), preaxial limb defects (i.e. hypoplastic hands, absent halluces) and various other anomalies including ambiguous genitalia, imperforate anus, and vertebral anomalies. The syndrome is thought to have an autosomal recessive mode of inheritance. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Rieger syndrome |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare heterotaxia characterised by complex congenital heart malformations and abnormal lateralisation of other thoracic and abdominal organs due to embryonic disruption of the left-right axis development. Cardiac defects include dextrocardia or mesocardia, common atrioventricular valve associated with complete atrioventricular septal defect or common atrium, transposition or malposition of the great arteries, and total anomalous pulmonary venous drainage, among others. Cardiac arrhythmias are frequently observed. Typical abnormalities of other organs are bilateral trilobed lungs, midline liver, and asplenia. Patients present in the newborn period with severe cardiac failure and cyanosis. Prognosis is poor. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Camurati-Engelmann disease (CED) is a rare, clinically variable bone dysplasia syndrome characterised by hyperostosis of the long bones, skull, spine and pelvis, associated with severe pain in the extremities, a wide-based waddling gait, joint contractures, muscle weakness and easy fatigability. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare disorder characterised by increased bone density (predominantly diaphyseal) and aregenerative corticosteroid-sensitive anaemia. The exact prevalence is unknown. Associated with mutations in the TBXAS1 gene (which encodes thromboxane synthase). Transmitted as an autosomal recessive trait. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genodermatosis disease with great phenotypic variation and characterised most commonly by ichthyosis following the lines of Blaschko, chondrodysplasia punctata (CDP), asymmetric shortening of the limbs, cataracts and short stature. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Chondrodysplasia punctata, X-linked recessive type (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare, fatal multiple congenital anomalies/dysmorphic syndrome characterized by facial dysmorphism (including dolichocephaly/scaphocephaly, high frontal hairline, laterally overlapping upper eyelids, hypertelorism, prominent eyelashes, deep-set eyes, macrocornea, nystagmus, dysplastic ears, abnormal auricles, prominent nasal bridge, dental dysplasia), visual impairment, deafness, seizures, generalized skeletal dysplasia, high fingerprint ridge count, cryptorchidism, hypospadias, spasticity and severe intellectual disability. An increased chromosome breakage and a fatal lymphoid malignancy have been reported. There has been no further description in the literature since 1974. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by a pregnancy complicated by polyhydramnios, severe intractable epilepsy presenting in infancy, severe hypotonia, decreased muscle mass, global developmental delay, craniofacial dysmorphism (long face, large forehead, peaked eyebrows, broad nasal bridge, hypertelorism, large mouth with thick lips), and macrocephaly due to megalencephaly and hydrocephalus in most patients. Additional features that have been reported include cardiac anomalies like atrial septal defects, diabetes insipidus, and nephrocalcinosis, among others. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare syndromic genetic deafness characterized by congenital hearing loss, atresia or stenosis of the external auditory canal, dilated internal auditory canal, malformation of the inner ear (incomplete separation of the cochlea basal turn from the fundus of the internal auditory canal), in combination with abnormal auricular shape and facial dysmorphism (including thick eyebrows, ptosis, broad nasal root, and telecanthus). Intelligence is normal and developmental delay is absent. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay and moderate to severe intellectual disability, as well as variable other manifestations, such as macro- or microcephaly, epilepsy, hypotonia, behavioral problems, stereotypic movements, and facial dysmorphism (including arched eyebrows, long palpebral fissures, prominent nasal bridge, upturned nose, dysplastic ears, and broad mouth), among others. Brain imaging may show cerebellar anomalies, hypoplastic corpus callosum, enlarged ventricles, polymicrogyria, or white matter abnormalities. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic lethal multiple congenital anomalies/dysmorphic syndrome characterized by severe hydranencephaly and renal dysplasia or agenesis. Pregnancy is complicated by oligo- or anhydramnios, leading to features of Potter sequence (including typical facies and microretrognathia, limb contractures, talipes equinovarus, and pulmonary hypoplasia) in the fetus. Affected fetuses either die in utero or shortly after birth. Histology of the brain shows widespread presence of multinucleated neurons and glial cells. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare overgrowth syndrome associated with multiple congenital anomalies characterized by tall stature, large hands and feet with large thumbs and halluces, spatulate digits, developmental delay and facial dysmorphism. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Deafness-dystonia-optic neuronopathy syndrome (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare mitochondrial disease characterized by signs and symptoms within a phenotypic and metabolic spectrum that includes global developmental delay, hypotonia, intellectual disability, optic atrophy, axonal neuropathy, hypertrophic cardiomyopathy, lactic acidosis, and increased excretion of Krebs cycle intermediates. Other variable features are spasticity, seizures, ataxia, congenital cataract, and dysmorphic facial features. Age of onset is in the neonatal period or infancy. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, absent scrotum or labia majora, absent or underdeveloped nipples and a tuft of hair extruding from the lactiferous ducts, bilateral corneal opacities, and dysmorphic craniofacial features (microcephaly, short forehead, and ear abnormalities, among others). Patients also show horizontal nystagmus and ataxic gait. Brain MRI reveals small cerebellar hemispheres and vermis and a small pons. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by developmental delay with mild intellectual disability, short stature, facial dysmorphism (such as sparse hair, high forehead, deep-set eyes, short and upslanting palpebral fissures, short nose, anteverted nares, wide nasal base with broad nasal tip and broad columella, long philtrum, thin upper lip, and low-set, posteriorly rotated ears), and variable onset of sensorineural hearing loss and retinitis pigmentosa. Additional features are other ocular anomalies, abnormalities of the fingers, hypothyroidism, and signs of premature aging. Brain imaging shows cerebellar atrophy and dysmyelination. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, hypotonia, seizures, and autism spectrum disorder. Variable associated features include ophthalmologic anomalies, congenital heart defects, genitourinary defects, and craniofacial dysmorphism (including frontal bossing, epicanthal folds, low-set, posteriorly rotated ears, anteverted nares, and micrognathia). Brain imaging may show thinning of the corpus callosum, white matter abnormalities, ventriculomegaly, and a small cerebellar vermis. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay and intellectual disability, infantile hypotonia, microcephaly, movement disorder, and impaired balance. More variable manifestations are hearing loss, cortical visual impairment, abnormalities of fingers and/or toes, congenital cardiac anomalies, kyphoscoliosis, dysmorphic facial features, abnormal sleep pattern, and seizures, among others. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare congenital disorder of glycosylation characterized by early onset of hypotonia, severe global developmental delay, intellectual disability, and seizures. Ataxia, mild facial dysmorphism, and autistic behavior have also been reported. Brain MRI findings are variable and include cerebral atrophy, cerebellar hypoplasia/atrophy, and thin corpus callosum. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| TBCK-related intellectual disability syndrome is a rare, genetic, syndromic intellectual disability characterized by usually profound intellectual disability with absent speech, severe infantile hypotonia with decreased or absent reflexes, markedly slow motor development (with no progress beyond the ability to sit independently), early-onset epilepsy, strabismus and post-natal onset of progressive brain atrophy (including loss of brain volume, ex vacuo ventriculomegaly, dysgenesis of corpus callosum, white matter abnormalities ranging from non-specific changes to leukodystrophy). Swallowing difficulties, respiratory insufficiency, osteoporosis and variable craniofacial dysmorphisms (including plagio/brachycephaly, bitemporal narrowing, high-arched eyebrows, high nasal bridge, anteverted nares, high palate, tented upper lip) may constitute additional clinical features. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by infantile onset of global developmental delay, severe intellectual disability, growth deficiency, microcephaly, strabismus, blue-gray sclerae, and extensive Mongolian spots. Some patients also present with epilepsy. Brain imaging may demonstrate variable abnormalities including cerebral atrophy, thin corpus callosum, ventriculomegaly, or arachnoid cysts. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by infantile to childhood onset of global developmental delay, hypotonia, seizures, growth delay, and intellectual disability. Additional variable features include strabismus, cortical visual impairment, nystagmus, movement disorder (such as dystonia, ataxia, or chorea), or mild dysmorphic features, among others. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare frontonasal dysplasia characterized by a craniofacial phenotype comprising frontal bossing with high anterior hairline, ptosis, hypertelorism, epicanthus inversus, flat nasal bridge, and broad nasal tip. Large anterior fontanelle, sagittal synostosis, and cranial base anomalies have also been described. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic syndrome with limb malformations as a major feature characterized by unilateral or bilateral split-foot malformation, nail abnormalities of the hand, and bilateral sensorineural hearing impairment. Mesoaxial polydactyly of the foot has also been described. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare, genetic retinal disorder characterized by bilateral iris coloboma, progressive retinal dystrophy and marked loss of vision, with or without congenital cataracts. Iridolenticular adhesions, scattered retinal pigmented epithelia mottling, and mild hypermetropic astigmatism may be associated. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare sterol biosynthesis disorder characterized by microcephaly, bilateral congenital cataract, mild developmental delay, growth delay with short stature, psoriasiform dermatitis of variable severity, and immune dysregulation. Behavioral disorder, joint contractures, and arthralgia have also been described. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by global developmental delay, intellectual disability, macrothrombocytopenia, lymphedema, and dysmorphic facial features (like synophrys, ptosis, eversion of the lateral portion of the lower eyelid, and thin upper lip, among others). Additional reported manifestations include cardiac and genitourinary anomalies, sensorineural hearing loss, ophthalmologic abnormalities, skeletal anomalies, and immunodeficiency. Brain imaging may show enlarged ventricles, cerebellar atrophy, or white matter changes. |
Is a |
False |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare X-linked syndromic intellectual disability characterized by intellectual disability of variable degree, behavioral anomalies (including autism, mood disorders, obsessive-compulsive behavior, and hetero- and auto-aggression), and epilepsy. Progressive neurological symptoms like movement disorders and spasticity, as well as subtle dysmorphic features have also been reported. Heterozygous females may be as severely affected as males. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by congenital contractures of the distal interphalangeal joints, progressive stiffness of the shoulders and neck, keloid scarring, increased optic cup-to-disc ratio, and renal stones. Additional reported features include arthritis, osteoporosis, hypoplastic flexion creases, clinodactyly, anxiety, and facial dysmorphism (such as sloping forehead, prominent supraorbital ridges, downslanting palpebral fissures, prominent ears, and high arched palate). Female carriers exhibit a variable, milder phenotype. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Global developmental delay-visual anomalies-progressive cerebellar atrophy-truncal hypotonia syndrome is a rare, genetic, neurological disorder characterized by mild to severe developmental delay and speech impairment, truncal hypotonia, abnormalities of vision (including cortical visual impairment and abnormal visual-evoked potentials), progressive brain atrophy mainly affecting the cerebellum, and shortened or atrophic corpus callosum. Other clinical findings may include increased muscle tone in the extremities, dystonic posturing, hyporeflexia, scoliosis, postnatal microcephaly and variable facial dysmorphism (e.g. deep-set eyes, gingival hyperplasia, short philtrum and retrognathia). |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, and dysmorphic facial features (such as facial asymmetry, prominent forehead, short palpebral fissures, low nasal bridge, smooth and long philtrum, thin upper lip, and low-set, posteriorly rotated, dysplastic ears), exclusively affecting females. Additional reported manifestations include short stature, choanal atresia, scoliosis, congenital ocular, dental, cardiac, and urogenital anomalies, as well as hypotonia, seizures, and structural brain abnormalities, among others. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Recurrent metabolic encephalomyopathic crises-rhabdomyolysis-cardiac arrhythmia-intellectual disability syndrome is a rare, genetic, neurodegenerative disease characterized by episodic metabolic encephalomyopathic crises (of variable frequency and severity which are frequently precipitated by an acute illness) which manifest with profound muscle weakness, ataxia, seizures, cardiac arrhythmias, rhabdomyolysis with myoglobinuria, elevated plasma creatine kinase, hypoglycemia, lactic acidosis, increased acylcarnitines and a disorientated or comatose state. Global developmental delay, intellectual disability and cortical, pyramidal and cerebellar signs develop with subsequent progressive neurodegeneration causing loss of expressive language and varying degrees of cerebral atrophy. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Allan-Herndon-Dudley syndrome |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| X-linked agammaglobulinemia with growth hormone deficiency |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare partial duplication of the long arm of chromosome 17 characterized by a combination of features of 17p11.2 microduplication syndrome and Charcot-Marie-Tooth disease type 1A. Patients present with infantile onset of global developmental delay, hypotonia, feeding difficulties, and failure to thrive, as well as childhood onset of peripheral neuropathy with distal extremity weakness or atrophy, gait impairment, sensory loss, reduced or absent deep tendon reflexes of the ankles, and foot deformities. Facial dysmorphism, cardiac and renal anomalies, and syringomyelia may also be observed. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Christianson syndrome |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| 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. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare mitochondrial disease characterized by early onset of hypertrophic cardiomyopathy and variable neurologic symptoms including global developmental delay, hypotonia, intellectual disability, visual impairment, and seizures. Lactic acidosis is present in all patients. Muscle biopsy usually shows decreased activity of mitochondrial complexes I and IV. Brain imaging may reveal variable abnormal signal intensities in the thalamus, basal ganglia, and/or brain stem. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Severe X-linked myotubular myopathy (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by postnatal microcephaly, hypotonia during infancy followed in most cases by progressive spasticity mainly affecting the lower limbs, and spastic diplegia or paraplegia, intellectual disability, delayed or absent speech, and dysarthria. Seizures and mildly dysmorphic features have been described in some patients. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Lethal tight skin contracture syndrome (disorder) |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare hereditary ataxia characterized by delayed motor milestones in early infancy, hypotonia, ataxic gait, intention tremor, nystagmus, dysarthric speech, and variable learning difficulties. Neuroimaging shows a mixed picture of cerebellar hypoplasia and degeneration, with an almost absent inferior lobule and thinning of the folia of the vermis. In addition, cisterna magna and fourth ventricle are enlarged with relative sparing of the brain stem volume. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Mohr syndrome |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Orofacial-digital syndrome III |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Orofacial-digital syndrome IV |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Kallmann syndrome with cardiopathy is characterized by hypogonadotropic hypogonadism associated with gonadotropin-releasing hormone (GnRH) deficiency, anosmia or hyposmia (with hypoplasia or aplasia of the olfactory bulbs) and complex congenital cardiac malformations (double-outlet right ventricle, dilated cardiomyopathy, right aortic arch). It represents a distinct clinical entity from Kallmann syndrome. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic eye disease characterized by microcornea, coloboma of the iris and the optic disc, axial enlargement of the globe, staphyloma, and severe myopia. Additional manifestations are mild cornea plana, iridocorneal angle abnormalities with elevation of intraocular pressure, and shallow anterior chamber depth. Variable expressivity of the phenotype has been described, including unilateral or bilateral involvement, or variable extent of coloboma, among other features. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Familial patent arterial duct is a rare, genetic, non-syndromic, congenital anomaly of the great arteries characterized by the presence of an isolated patent arterial duct (PDA) (i.e. failure of closure of ductus arteriosis after birth) in several members of the same family. Clinical presentation is similar to the sporadic form and may range from neonatal-onset tachypnea, diaphoresis and failure to thrive to adult-onset atrial arrhythmia, signs and symptoms of heart failure and cyanosis limited to the lower extremities. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by moderate to severe intellectual disability, developmental delay, macrocephaly, speech delay, and hypotonia. Dysmorphic facial features include a high, broad, and/or prominent forehead, laterally sparse eyebrows, widely spaced and deeply-set eyes, narrow palpebral fissures, low-set ears, full/prominent cheeks, midface hypoplasia, thin upper lip, and a pointed chin. Additional variable manifestations include joint laxity, abnormality of vision (including hypermetropia, strabismus, and cerebral visual impairment), genital abnormalities in males, and inguinal, umbilical, or hiatal hernia. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic cardiac malformation characterized by progressive myxomatous degeneration predominantly of the mitral valve (but not uncommonly with multivalvular involvement), presenting as valve thickening and dysfunction with variable stenosis, prolapse, and/or regurgitation, and potentially resulting in lethal heart failure. Hyperextensible skin and joint hypermobility have been reported in some patients. Hemizygous males display a more severe phenotype than heterozygous females. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by intellectual disability, developmental delay, language deficits, and cardiac arrhythmia (most commonly sick sinus syndrome). Additional reported features include epilepsy, hypotonia, retinal abnormalities, nystagmus, attention deficit hyperactivity disorder, autism, and gastroesophageal reflux. The severity of the phenotype is highly variable. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare, genetic, syndromic intellectual disability disease characterized by severe intrauterine and post-natal growth delay, moderate to severe intellectual disability, and neonatal-onset hepatopathy with fibrosis, steatosis, and/or cholestasis, occasionally leading to liver failure. Additional variable manifestations include muscular hypotonia, zinc deficiency, recurrent infections, diabetes mellitus, joint contractures, skin and joint laxity, hypervitaminosis D, and sensorineural hearing loss. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by infantile onset of severe inflammatory bowel disease manifesting with bloody diarrhea and failure to thrive, and central nervous system disease with global developmental delay and regression, impaired speech, hypotonia, hyperreflexia, and epilepsy. Brain imaging shows global cerebral atrophy, thin corpus callosum, delayed myelination, and posterior leukoencephalopathy. Cases with recurrent infections and impaired T-cell responses to stimulation, as well as decreased T-cell subsets, have been reported. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by variable developmental delay and intellectual disability, movement disorder or gait abnormalities, and dysmorphic craniofacial features (such as facial asymmetry, broad forehead, posteriorly rotated ears, thick lower lip, micrognathia, or cleft palate). A variety of congenital malformations have been reported in addition, including ocular, renal, cardiac, and joint anomalies, among others. Some patients show behavioral alterations (autism, hyperactivity, or anxiety). |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by progressive spastic paraparesis and delayed gross motor development with an onset in infancy or early childhood. Patients also show variable degrees of intellectual disability, speech delay, and dysarthria. Other reported features include microcephaly, seizures, bifid uvula with or without cleft palate, and ocular anomalies. Brain imaging shows white matter abnormalities in the periventricular and other regions. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic intellectual disability characterised by the association of intellectual disability with variable other anomalies in the absence of a well-characterised syndrome. Associated abnormalities may include facial dysmorphism, neurological signs and symptoms, behavioural problems, and abnormalities of various other organ systems. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
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| A rare disorder with multisystemic involvement and glomerulopathy characterized by progressive steroid-resistant nephrotic syndrome typically associated with focal segmental glomerulosclerosis, as well as primary adrenal insufficiency with adrenal calcifications. Age of onset and disease course are variable, with some cases presenting as severe fetal hydrops, while most patients present in infancy or early childhood and progress to end-stage renal disease within a few years. Additional features include ichthyosis, primary hypothyroidism, hypogonadism, immunodeficiency, and neurological manifestations (such as cognitive impairment, ataxia, sensorineural hearing loss, or seizures). |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
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| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by variable developmental delay, intellectual disability, early-onset seizures, and facial dysmorphism (including arched eyebrows, long palpebral fissures, prominent nasal bridge, large ears, thin upper lip, and high arched palate). Other reported features are microcephaly, hypotonia, growth retardation, congenital heart defects, and malformations of the fingers and toes, as well as additional neurologic manifestations (such as ataxia or spastic quadriplegia). Brain imaging may show hypoplastic corpus callosum, white matter abnormalities, or cortical atrophy. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
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| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by mild global developmental delay, intellectual disability or learning difficulties, behavioral problems (like autistic, hyperactive, or aggressive behavior), variable dysmorphic craniofacial features, and abnormalities of the fingers (brachydactyly, tapering fingers, prominent interphalangeal joints). Additional manifestations are highly variable and include recurrent infections and skeletal anomalies, among others. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic syndrome with limb malformations as a major feature characterized by preaxial polydactyly of the hands and feet with variable phenotypic expressivity in combination with hypertrichosis extending from the posterior hairline to the middle of the back. Reported limb malformations include triphalangeal thumbs, duplicated thumbs, preaxial extra ray, and syndactyly between digits I and II in the hands, and large or duplicated hallux and syndactyly between toes I and II in the feet. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
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| A rare multiple congenital anomalies syndrome usually characterized by microcephaly, ocular anomalies such as microphthalmia, and apple-peel intestinal atresia. Facial dysmorphism is reported in some cases and may include narrow or sloped forehead, hypertelorism, microphthalmia, dysplastic, edematous deep-set eyes, short palpebral fissures, large or low set ears, broad nasal root, anteverted or broad nasal tip, long philtrum, micrognathia, thin upper vermillion, large mouth and skin tag on the cheek. Motor delay and intellectual disability have been reported. Heart, brain, craniofacial abnormalities, renal hypoplasia and other anomalies (e.g. lower limb edema, thrombocytopenia) are variably present. Rarely, cases without intestinal atresia, microcephaly or developmental delay can be found. Severe lethal cases have also been reported. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic neurodevelopmental syndrome characterized by mild intellectual disability, developmental delay, dysmorphic facial features, growth- and feeding problems, hypotonia, epilepsy, behavioral problems and a variety of congenital abnormalities. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Sugarman brachydactyly is a rare, genetic, congenital limb malformation characterized by brachydactyly of fingers, with major proximal phalangeal shortening and immobile proximal interphalangeal joints, as well as dorsally and proximally placed, non-articulating great toes (with or without angulation). Radiographic findings of hands include bilateral double first metacarpals and biphalangeal fifth fingers. There have been no further descriptions in the literature since 1982. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare, genetic, neurodevelopmental disorder with primordial microcephaly characterized by primary microcephaly, moderate to severe intellectual disability, and global developmental delay. Variable brain malformations are common ranging from simplified gyration, to cortical malformations such as pachygyria, polymicrogyria, reduced sulcation and midline defects. Craniofacial dysmorphism (e.g. sloping forehead, high and broad nasal bridge) are related to the primary microcephaly. Short stature is frequently observed and may be severe. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by hypotonia, delayed motor development, dyskinesia of the limbs, intellectual disability with impaired speech development, seizures, autistic features, stereotypic movements, and sleep disturbance. Onset of symptoms is in infancy. Bilateral abnormalities in the putamen on brain MRI have been reported in some patients. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Severe hypotonia-psychomotor developmental delay-strabismus-cardiac septal defect syndrome is a rare, genetic, non-dystrophic congenital myopathy disorder characterized by a neonatal-onset of severe generalized hypotonia associated with mild psychomotor delay, congenital strabismus with abducens nerve palsy, and atrial and/or ventricular septal defects. Cryptorchidism is commonly reported in male patients and muscle biopsy typically reveals increased variability in muscle fiber size. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic leukodystrophy identified in families of Ashkenazi Jewish descent, characterized by infancy onset of severe global developmental delay with very limited or absent speech and sometimes complete absence of motor development, hypotonia, spasticity, and acquired microcephaly. Seizures, hearing loss, visual impairment, and autonomic dysfunction have also been described. Brain imaging shows delayed myelination and other white matter abnormalities. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Seizures-scoliosis-macrocephaly syndrome is a rare, genetic neurometabolic disorder characterized by seizures, macrocephaly, delayed motor milestones, moderate intellectual disability, scoliosis with no exostoses, muscular hypotonia present since birth, as well as renal dysfunction. Coarse facial features (including hypertelorism and long hypoplastic philtrum) and bilateral cryptorchidism (in males) are also commonly reported. Additional manifestations include abnormal gastrointestinal motility (resulting in constipation, diarrhea, gastroesophageal reflux and dysphagia), gait disturbances, strabismus and ventricular septal defects. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic, multiple congenital anomalies syndrome characterized by short stature, hand brachydactyly with hypoplastic distal phalanges, global development delay, intellectual disability, and more variably seizures, obesity, and craniofacial dysmorphism that includes microcephaly, high forehead, flat face, hypertelorism, deep set eyes, flat nasal bridge, averted nostrils, long philtrum, thin lip vermilion, and short neck. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Spastic paraplegia-severe developmental delay-epilepsy syndrome is a rare, genetic, complex spastic paraplegia disorder characterized by an infantile-onset of psychomotor developmental delay with severe intellectual disability and poor speech acquisition, associated with seizures (mostly myoclonic), muscular hypotonia which may be noted at birth, and slowly progressive spasticity in the lower limbs leading to severe gait disturbances. Ocular abnormalities and incontinence are commonly associated. Other symptoms may include verbal dyspraxia, hypogenitalism, macrocephaly and sensorineural hearing loss, as well as dystonic movements and ataxia with upper limb involvement. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay and intellectual disability, progressive spondyloepimetaphyseal dysplasia, short stature, short fourth metatarsals, and dysmorphic craniofacial features (including microcephaly, hypertelorism, epicanthal folds, mild ptosis, strabismus, malar hypoplasia, short nose, depressed nasal bridge, full lips, small, low-set ears, and short neck). Craniosynostosis, generalized hypotonia, as well as asymmetry of the cerebral hemispheres and mild thinning of the corpus callosum on brain imaging have also been described. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability, characterized by macrocephaly, intellectual disability, seizures, dysmorphic facial features (including tall forehead, downslanting palpebral fissures, hypertelorism, depressed nasal bridge, and macrostomia), megalencephaly, and small thorax. Other reported features are umbilical hernia, muscular hypotonia, global developmental delay, autistic behavior, and café-au-lait spots, among others. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| 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). |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Macrocephaly-intellectual disability-left ventricular non compaction syndrome is a rare, genetic, syndromic intellectual disability characterized by motor and cognitive developmental delay with language impairment, macrocephaly, hypotonia, dysmorphic facial features (including long face, slanting palpebral fissures and prominent, flattened nose) and left ventricular noncompaction cardiomyopathy. Patients also present skeletal abnormalities (e.g. scoliosis, finger clinodactyly, pes planus), slender build and shy behavior. Strabismus and various neurological signs (including ataxia, tremor and hyperreflexia) may be associated, as well as epilepsy, autism and MRI findings showing a small cerebellum and abnormalities of the corpus callosum. A phenotypic variant with no cardiac involvement has been reported. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| A rare, genetic intellectual disability syndrome characterized by severe global developmental delay with intellectual disability, microcephaly, growth retardation, ocular defects such as congenital cataract, and nevus flammeus simplex on the forehead. Cardiac, urogenital, and skeletal abnormalities, as well as seizures are present in most patients. Dysmorphic craniofacial features include sparse hair, downslanting palpebral fissures, hypertelorism, broad and overhanging nasal tip and short philtrum, among others. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
| Melorheostosis with osteopoikilosis is a rare sclerosing bone dysplasia, combining the clinical and radiological features of melorheostosis and osteopoikilosis, that has been reported in some families with osteopoikilosis and that is characterized by a variable presentation of limb pain and deformities. |
Is a |
True |
Developmental hereditary disorder |
Inferred relationship |
Some |
|
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