| Members |
languageDialectCode |
typeId |
value |
| Metaphyseal dysostosis-intellectual disability-conductive deafness syndrome is characterized by metaphyseal dysplasia, short-limb dwarfism, mild intellectual deficit and conductive hearing loss, associated with repeated episodes of otitis media in childhood. It has been described in three brothers born to consanguineous Sicilian parents. Variable manifestations included hyperopia and strabismus. The mode of inheritance is autosomal recessive. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Metaphyseal dysplasia, Braun-Tinschert type is characterized by metaphyseal undermodeling with broadening of the long bones and femora with an Erlenmeyer flask appearance, expansion and bowing of the radii with severe varus deformity and flat exostoses of the long bones at the metadiaphyseal junctions. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Metaphyseal dysplasia-maxillary hypoplasia-brachydactyly syndrome is characterized by metaphyseal dysplasia associated with short stature and facial dysmorphism (a beaked nose, short philtrum, thin lips, maxillary hypoplasia, dystrophic yellowish teeth) and acral anomalies (short fifth metacarpals and/or short middle phalanges of fingers two and five). It has been described in several members spanning four generations of a French-Canadian family. The syndrome is likely to be transmitted as an autosomal dominant trait. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic neurometabolic disease characterised by microcephaly, short stature, epilepsy, cerebral hypomyelination, severe global developmental delay, and progressive spasticity. Macrocytic anaemia and hyperthermia have also been reported in association. Brain imaging reveals delayed myelination with minimal progression over time, mild cerebellar atrophy and/or thin corpus callosum. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency is a rare inborn error of metabolism disease characterized by mild to moderate, persistent elevation of methylmalonic acid in plasma, urine and cerebrospinal fluid. Clinical presentation may include acute metabolic decompensation with metabolic acidosis (presenting with vomiting, dehydration, confusion, hallucinations), nonspecific neurological symptoms, or may also be asymptomatic. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic multiple congenital anomalies/dysmorphic syndrome with variable intellectual disability characterized by abnormal head shape/metopic ridging and facial dysmorphism (which may include arched eyebrows, ptosis, downslanting palpebral fissures, epicanthal folds, and short upturned nose). Many patients present variable global developmental delay and/or autism spectrum disorder. Additional reported features are cardiac, skeletal, or urogenital anomalies. Brain imaging may show agenesis of the corpus callosum. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, severe form of mevalonate kinase deficiency (MKD) characterized by dysmorphic features, failure to thrive, psychomotor delay, ocular involvement, hypotonia, progressive ataxia, myopathy, and recurrent inflammatory episodes. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microbrachycephaly-ptosis-cleft lip syndrome is characterized by the association of intellectual deficit, microbrachycephaly, hypotelorism, palpebral ptosis, a thin/long face, cleft lip, and anomalies of the lumbar vertebra, sacrum and pelvis. It has been described in two Brazilian sisters. Transmission appears to be autosomal recessive. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephalic osteodysplastic dysplasia, Saul-Wilson type is a skeletal dysplasia characterised by a distinct facial phenotype, short stature, brachydactyly, clubfoot deformities, cataracts, and microcephaly. It has been described in four patients. Facial features include frontal bossing with a depression over the metopic suture, a narrow nasal root with a beaked nose, and midfacial hypoplasia with prominent eyes. Characteristic radiographic findings are observed (irregularities of the vertebral bodies, hypoplasia of the odontoid process, short phalanges, coning several epiphyses etc.). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare bone disease and a form of microcephalic primordial dwarfism characterised by severe pre- and postnatal growth retardation, with marked microcephaly in proportion to body size, skeletal dysplasia, abnormal dentition, insulin resistance, and increased risk for cerebrovascular disease. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, severe, primary bone dysplasia characterized by intrauterine and postnatal growth retardation, microcephaly, facial dysmorphism, skeletal dysplasia, low-birth weight and brain anomalies. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare form of primordial dwarfism, often microcephalic, characterized by short stature, global developmental delay, variable intellectual disability and recognizable dysmorphic facial features (triangular face, prominent forehead, deeply set eyes, low-set ears, wide nose, malar hypoplasia, wide mouth, thick lips, and widely spaced teeth). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephalic primordial dwarfism, Dauber type is a rare, genetic developmental defect during embryogenesis characterized by severe pre- and postnatal growth retardation, severe microcephaly, severe developmental delay and intellectual disability, severe adult short stature and facial dysmorphism (including hypotelorism, small ears, prominent nose). Other reported features include skeletal anomalies (Madelung deformity, clinodactyly, mild lumbar scoliosis, bilateral hip dysplasia) and seizures. Absence of thelarche and menarche is also associated. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, genetic multiple congenital anomalies/dysmorphic syndrome characterized by severe short stature and craniofacial dysmorphism (microcephaly, narrow face with flat cheeks, ptosis, prominent nose with a convex ridge, low-set ears with small or absent lobes, high-arched/cleft palate, micrognathia), associated with premature graying and loss of scalp hair, redundant, dry and wrinkled skin of the palms, premature senility and varying degrees of intellectual disability. Cryptorchidism and skeletal anomalies may also be observed. There have been no further descriptions in the literature since 1970. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephalic primordial dwarfism due to ZNF335 deficiency is characterized by severe antenatal microencephaly, simplified gyration, agenesis of the corpus callosum, absence of basal ganglia (very rare), pontocerebellar atrophy and involvement of the white matter with secondary cerebral atrophy. Congenital cataract, choanal atresia, multiple arthrogryposis and spastic tetraparesis can occur. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare disorder characterized by growth retardation with prenatal onset, cataracts, microcephaly, intellectual deficit, immune deficiency, delayed ossification and enamel hypoplasia. It has been described in two siblings. Transmission is autosomal recessive. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic disease characterized by severe pre- and postnatal growth failure with short stature and microcephaly, facial dysmorphism (including a small jaw and prominent midface), severe insulin resistance, fatty liver, and hypertriglyceridemia developing in childhood, and primary gonadal failure. Mild global learning difficulties and acanthosis nigricans have also been reported. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-cardiomyopathy syndrome is characterized by severe intellectual deficit, microcephaly and dilated cardiomyopathy. Hand and foot anomalies have also been reported. The syndrome has been described in three individuals. Transmission is autosomal recessive. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-cleft palate-abnormal retinal pigmentation syndrome is a rare orofacial clefting syndrome characterized by microcephaly, cleft of the secondary palate and other variable abnormalities, including abnormal retinal pigmentation, facial dysmorphism with hypotelorism and maxillary hypoplasia. Goiter, camptodactyly, abnormal dermatoglyphics and mild intellectual disability may also be associated. There have been no further descriptions in the literature since 1983. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-cervical spine fusion anomalies syndrome is characterized by microcephaly, facial dysmorphism (beaked nose, low-set ears, downslanting palpebral fissures, micrognathia), mild intellectual deficit, short stature, and cervical spine fusion anomalies producing spinal cord compression. It has been described in two brothers born to consanguineous parents. Transmission is likely to be autosomal recessive. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-facio-cardio-skeletal syndrome, Hadziselimovic type is a rare syndrome with cardiac malformations, characterized by prenatal-onset growth retardation (low birth weight and short stature), hypotonia, developmental delay and intellectual disability associated with microcephaly and craniofacial (low anterior hairline, hypotelorism, thick lips with carp-shaped mouth, high-arched palate, low-set ears), cardiac and skeletal (hypoplastic thumbs and first metacarpals) abnormalities. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-microcornea syndrome, Seemanova type is characterized by microcephaly and brachycephaly, eye anomalies (microphthalmia, microcornea, congenital cataract), hypogenitalism, severe intellectual deficit, growth retardation and progressive spasticity. It has been described in two patients (a male and his sister's son). Both patients also presented with facial dysmorphism, including upslanting palpebral fissures, epicanthal folds, highly arched palate, microstomia, and retrognathia. This syndrome is transmitted as an X-linked trait. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly - albinism - digital anomalies syndrome is a very rare syndrome associating microcephaly, micrognathia, oculocutaneous albinism, hypoplasia of the distal phalanx of fingers and agenesia of the distal end of the right big toe. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-brachydactyly-kyphoscoliosis syndrome is characterized by profound intellectual deficit in association with microcephaly, short stature, brachydactyly type D, a flattened occiput, downslanting palpebral fissures, low-set large ears, a broad prominent nose and kyphoscoliosis. It has been described in three sisters. The disorder is likely to be transmitted as an autosomal recessive trait. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly - cardiac defect - lung malsegmentation syndrome is a very rare syndrome characterized by the combination of microcephaly, heart defects, renal hypoplasia, lung segmentation defects and cleft palate. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-brain defect-spasticity-hypernatremia syndrome is a rare congenital genetic syndrome with a central nervous system malformation as a major feature characterized by microcephaly, hypertonia, developmental delay and cognitive impairment, swallowing difficulty, hypernatremia, and hypoplasia of the frontal parts and fusion of the lateral ventricles on brain MRI. There have been no further descriptions in the literature since 1986. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-complex motor and sensory axonal neuropathy syndrome is an extremely rare subtype of hereditary motor and sensory neuropathy characterized by severe, rapidly progressing, distal, symmetric polyneuropathy and microcephaly (which can be evident in utero) with intact cognition. Clinically it presents with delayed motor development, hypotonia, absent or reduced deep tendon reflexes, progressive muscle wasting and weakness and scoliosis. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare intellectual disability syndrome characterized by intellectual deficit, marfanoid habitus, microcephaly, and glomerulonephritis. There have been no further reports since 1992. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mikati-Najjar-Sahli syndrome is characterized by microcephaly, hypergonadotropic hypogonadism, short stature and facial dysmorphism (a narrow forehead, hypertrophy and fusion of the eyebrows, micrognathia and pinnae abnormalities). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly with or without chorioretinopathy, lymphedema or intellectual disability (MCLID) is a rare autosomal dominant condition characterized by variable expression of microcephaly, ocular disorders including chorioretinopathy, congenital lymphedema of the lower limbs, and mild to moderate intellectual disability. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microcephaly-deafness-intellectual disability syndrome is characterized by microcephaly, deafness, intellectual deficit and facial dysmorphism (facial asymmetry, prominent glabella, low-set and cup-shaped ears, protruding lower lip, micrognathia). It has been described in a mother and her son. The mode of inheritance is probably autosomal dominant. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by variable degrees of developmental delay and intellectual disability with poor or absent speech, hypotonia, hypoplastic or absent corpus callosum, and facial dysmorphism (such as long face, frontal bossing, hypertelorism, downslanting palpebral fissures, and tented upper lip). Additional reported features include microcephaly, seizures, gait ataxia, scoliosis, and syndactyly of fingers, among others. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic disease characterized by a highly variable phenotype comprising ocular anomalies (congenital glaucoma, myopia, retinal detachment, and/or Axenfeld-Rieger anomaly), congenital hypothyroidism, hearing loss, microcephaly, dental defects, kidney anomalies, cerebrovascular anomalies, and distal limb anomalies. Dysmorphic facial features may include square face with prominent jaw, broad flat nasal bridge, short philtrum, and prominent ears. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by microcephaly, developmental delay and intellectual disability, postnatal growth retardation, dysmorphic craniofacial features (including sloping forehead, beaked nose, large and protruding ears, micrognathia, high-arched palate, and craniosynostosis), immunologic abnormalities with transient hypogammaglobulinemia in infancy and defective chemotaxis leading to recurrent infections, as well as autoimmune/autoinflammatory phenomena. Skeletal anomalies and hypogonadism have also been reported. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic disease characterized by microcephaly, global developmental delay, intellectual disability, abnormal muscle tone, and sensorineural hearing impairment. Additional variable manifestations include epilepsy, cortical visual impairment, gastrointestinal disturbances, growth restriction, scoliosis, as well as immunodeficiency and thrombocytopenia. Brain imaging may show cerebral atrophy, thin corpus callosum, and hypomyelination. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| The MMEP syndrome is a congenital syndromic form of split-hand/foot malformation. It is characterized by microcephaly, microphthalmia, ectrodactyly of the lower limbs and prognathism. Intellectual deficit has been reported. MMEP syndrome is considered to be a very rare condition, although the exact prevalence remains unknown. The etiology is not completely understood. Disruption of the sorting nexin 3 gene (SNX3; 6q21) has been shown to play a causative role in MMEP, although this was not confirmed in recent studies. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, multiple congenital anomalies/dysmorphic syndrome characterized by microcephaly, intellectual disability, seizures, and congenital heart defects (e.g. atrial/ventricular septal defect, hypoplastic aortic arch with persistent ductus arteriosus). Additional manifestations include mild hypothyroidism, skeletal abnormalities, micropenis, delayed psychomotor development, dysmorphic facial features (including epicanthus, depressed nasal bridge, prominent antitragus), and pulmonary vascular occlusive disease. There have been no further descriptions in the literature since 1989. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, genetic, syndromic intellectual disability disease characterized by progressive postnatal microcephaly and global developmental delay, as well as moderate to profound intellectual disability, difficulty or inability to walk, pyramidal signs (including spasticity, hyperreflexia and extensor plantar response) and thin corpus callosum revealed by brain imaging. Ophthalmologic signs (including nystagmus, strabismus and abnormal retinal pigmentation), foot deformity and genital anomalies may also be associated. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare developmental defect during embryogenesis syndrome characterized by the association of microcornea, glaucoma and frontal sinus hypoplasia. Thick palmar skin and torus palatinus have also been reported. There have been no further descriptions in the literature since 1995. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare benign ovarian stromal tumor characterized by a stromal neoplasm with variable microcystic morphology, low mitotic activity, and diffuse nuclear beta-catenin and cyclin D1 immunoreactivity, while inhibin and calretinin are not expressed. Patients most commonly present with symptoms of a unilateral pelvic mass. Hormonal manifestations are usually absent. The tumor may be associated with familial adenomatous polyposis. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Familial and de novo recurrent Xp11.22-p11.23 microduplication has been recently identified in males and females. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A benign form of holoprosencephaly characterised by midline defects without the typical HPE defect in brain cleavage and which can variably manifest with microcephaly, hypotelorism, midline cleft lip and/or flat nose, choanal stenosis, pyriform sinus stenosis, coloboma as well as a single median maxillary incisor. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microlissencephaly-micromelia syndrome is a syndrome of abnormal cortical development, characterized by severe prenatal polyhydramnios, postnatal microcephaly, lissencephaly, upper limb micromelia, dysmorphic facies (coarse face, hypertrichosis, and short nose with long philtrum), intractable seizures, and early death. Hypoparathyroidism was noted in one case. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microphthalmia-ankyloblepharon-intellectual disability syndrome is characterized by microphthalmia, ankyloblepharon and intellectual deficit. It has been described in seven male patients from two generations of a Northern Ireland family. The causative gene is localized to the Xq27-q28 region. The syndrome is transmitted as an X-linked recessive trait. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microphthalmia with brain and digit anomalies is characterized by anophthalmia or microphthalmia, retinal dystrophy, and/or myopia, associated in some cases with cerebral anomalies. It has been described in two families. Polydactyly may also be present. Linkage analysis allowed identification of mutations in the BMP4 gene, which has already been shown to play a role in eye development. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic neurodegenerative disorder characterized by congenital microphthalmia, sunken eyes, blindness, microcephaly, severe intellectual disability, progressive spasticity, and seizures. Psychomotor development is normal in the first 6-8 months of life and thereafter declines rapidly and continuously. Brain MRI reveals progressive and extensive degenerative changes, especially cortex, cerebellum, brainstem, and corpus callosum atrophy, with complete loss of cerebral white matter. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare X-linked, syndromic eye disorder characterized by ocular defects (microphthalmia, orbital cysts, corneal opacities) and linear skin dysplasia of the neck, head, and chin. Additional findings may include agenesis of corpus callosum, sclerocornea, chorioretinal abnormalities, hydrocephalus, seizures, intellectual deficit, and nail dystrophy. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare lethal multiple congenital anomalies/dysmorphic syndrome characterized by the association of fetal akinesia sequence, bilateral microphthalmia, microtia, and persistent truncus arteriosus. Additional dysmorphic features include prominent forehead, small nose, micrognathia, as well as camptodactyly and symphalangism. Contractures of large joints and micropenis have also been reported. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Colobomatous microphthalmia is a developmental disorder of the eye characterized by unilateral or bilateral microphthalmia associated with ocular coloboma. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare inflammatory, necrotizing, systemic vasculitis that affects predominantly small vessels (i.e. small arteries, arterioles, capillaries, venules) in multiple organs, including the kidney, the lungs, the skin and the peripheral nerves. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Microspherophakia - metaphyseal dysplasia is a very rare syndrome associating bone dysplasia with micromelic dwarfism and eye defects. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| This syndrome is characterized by the association of microtia, eye coloboma, and imperforation of the nasolacrimal duct. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Micturation-induced seizures is a rare neurologic disease characterized by tonic posturing or clonic movements triggered by micturition, with bilateral or unilateral involvement of the extremities and with or without loss of consciousness. Developmental delay is reported in some cases. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare median facial cleft characterized by median cleft of the lower lip (ranging in extent from a notch in the vermilion to a complete cleft involving the tongue, lower lip, and chin, and extending to the cervical region), median cleft of the mandible (ranging from notching to a complete cleft), and anomaly of the tongue including bifid tongue and tongue tie. Associated features in severe cases may include absent hyoid, thyroid cartilage, and manubrium sterni, as well as atrophic neck muscles. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Laurin-Sandrow syndrome (LSS) is characterized by complete polysyndactyly of the hands, mirror feet and nose anomalies (hypoplasia of the nasal alae and short columella), often associated with ulnar and/or fibular duplication (and sometimes tibial agenesis). It has been described in less than 20 cases. Some cases with the same clinical signs but without nasal defects have also been reported and may represent the same entity. The etiology of LSS is unknown. Different modes of inheritance have been suggested. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare disorder characterized by mirror polydactyly, vertebral hypersegmentation and severe congenital limb deficiencies. Duodenal atresia and absent thymus were also reported. So far, it has been described in four unrelated infants identified through a congenital malformation screening program carried out in Spain. The prevalence was estimated at around 1 in 330,000. The etiology is unknown but it was suggested that the syndrome is caused by defective expression of a developmental control gene. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare non-syndromic limb malformation characterized by a hand or foot with more than five digits that has a recognizable anterior/posterior axis of symmetry, either with a hallux- or thumb-like structure or an interdigital space in the middle. The most lateral digits on each side typically resemble fifth fingers or toes. The malformation may be unilateral or bilateral and may occur in isolation or in association with other congenital anomalies. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic neurological disorder with characteristics of childhood to adolescence onset of progressive demyelination occurring in episodes, sensorimotor polyneuropathy, and hearing loss. Disease progression and severity is variable. In general, in an increasing and decreasing course, patients eventually develop respiratory insufficiency, loss of motor skills and ambulation, ataxia, and cognitive decline. Vision problems and skin rashes are commonly reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare disorder characterized by neurological dysfunction, hepatic failure and cardiomyopathy due to a deficiency of complex I of the respiratory chain. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mitochondrial DNA depletion syndrome, encephalomyopathic form is a group of mitochondrial DNA maintenance syndrome diseases characterized by predominantly neuromuscular manifestations with typically infantile onset of hypotonia, lactic acidosis, psychomotor delay, progressive hyperkinetic-dystonic movement disorders, external ophthalmoplegia, sensorineural hearing loss, generalized seizures and variable renal tubular dysfunction. It may be associated with a broad range of other clinical features. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare mitochondrial DNA depletion syndrome characterized by neonatal or infantile onset of global developmental delay, hypotonia, failure to thrive, progressive neurologic decline, sensorineural deafness, and movement disorder. Seizures, external ophthalmoplegia, polyneuropathy, cardiomyopathy, and renal tubular dysfunction have also been reported. Brain imaging may show T2-weighted hyperintensities in the basal ganglia, and laboratory examination may reveal lactic acidosis and mild methylmalonic aciduria. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare mitochondrial DNA depletion syndrome characterized by muscle weakness, and progressive, generalized hypotonia due to depletion of mtDNA in skeletal muscles. Clinical progression ranges from rapid and early fatal course due to respiratory failure, to slowly progressive myopathy over the course of childhood or even early adulthood. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare mitochondrial DNA depletion syndrome characterized by congenital or early-onset lactic acidosis, hypotonia, and severe global developmental delay with feeding difficulties and failure to thrive. It is frequently associated with variable dysmorphic facial features. Additional manifestations include seizures, movement disorders, and cardiac and ophthalmologic anomalies, among others. Brain imaging may show generalized atrophy and white matter abnormalities. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mitochondrial encephalo-cardio-myopathy due to TMEM70 mutation is characterized by early neonatal onset of hypotonia, hypertrophic cardiomyopathy and apneic spells within hours after birth accompanied by lactic acidosis, hyperammonemia and 3-methylglutaconic aciduria. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic neurological disorder characterized by childhood-onset dystonia with distinctive MRI changes in the basal ganglia, and optic atrophy developing either immediately or within a few years after the appearance of dystonia. Additional symptoms include chorea and other movement disorders, dysarthria, or nystagmus, among others. Motor disability progresses gradually, while cognitive function is relatively spared. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mitochondrial myopathy and sideroblastic anemia belongs to the heterogeneous family of metabolic myopathies. It is characterized by progressive exercise intolerance manifesting in childhood, onset of sideroblastic anemia around adolescence, lactic acidemia, and mitochondrial myopathy. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare mitochondrial myopathy characterized by motor developmental delay (in infancy), growth impairment and mostly proximal muscle weakness caused by a muscular dystrophy. Muscle biopsy presents myopathic abnormalities and decreased mtDNA content. Electromyography (EMG) shows a myopathic process and serum creatine kinase is increased. The disease is also characterized by early onset non-progressive cerebellar atrophy (particularly cerebellar vermis and hemispheres), corticospinal tract dysfunction, and global or partial cerebral atrophy on brain MRI. Additionally, some patients presented with cognitive deficiencies, skeletal abnormalities, tremors, and retinopathy. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare metabolic myopathy presenting during childhood, and characterized clinically by growth failure, severe muscle weakness, and moderate sensorineural deafness and biochemically by metabolic acidosis, elevated serum pyruvate concentration, hyperalaninemia and hyperalaninuria. There have been no further descriptions in the literature since 1973. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mitochondrial NeuroGastroIntestinal Encephalomyopathy (MNGIE) syndrome is characterized by the association of gastrointestinal dysmotility, peripheral neuropathy, chronic progressive external ophthalmoplegia and leukoencephalopathy. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare pyruvate metabolism disorder characterized by neonatal onset of a mitochondrial encephalopathy with global developmental delay and the biochemical characteristics of lactic acidosis and increased serum pyruvate with normal lactate/pyruvate ratio. Additional reported manifestations include epilepsy, peripheral neuropathy, hypotonia, nystagmus, extensor plantar responses, hepatomegaly, and craniofacial dysmorphism (such as progressive microcephaly, epicanthus, long philtrum, and thin upper lip). |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare common cystic lymphatic malformation characterized by a benign cystic lesion composed of dilated lymphatic channels. Mixed cystic lesions consist of cysts both larger (macrocystic) and smaller (microcystic) than 1 cm in diameter. They usually present at birth or during the first years of life and most often occur in the head and neck region but may affect any site. Symptoms depend on the location and extent of the lesion. Infection, trauma, or intracystic hemorrhage can lead to lesional expansion. Malignant transformation does not occur. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare neuroendocrine neoplasm of pancreas characterized by morphologically recognizable neuroendocrine and non-neuroendocrine components, each constituting at least 30% of the tumor volume. Based on histopathology, mixed ductal- and mixed acinar-neuroendocrine carcinomas are distinguished. Patients usually present with unspecific symptoms related to tumor growth and/or metastasis, although occurrence of Zollinger-Ellison syndrome has been reported. Resectability of the tumor is the most important prognostic factor. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A group of rare acute leukemias of ambiguous lineage characterized by the presence of separate populations of blasts of more than one lineage (bilineal), a single population of blasts coexpressing antigens of more than one lineage (biphenotypic), or a combination thereof. The diagnosis relies on immunophenotyping, the T-cell component being characterized by strong expression of cytoplasmic CD3, usually in the absence of surface CD3, the B-cell component expressing CD19, almost always together with CD10, cCD79a, CD22, or PAX5, while the most specific hallmark of the myeloid component is the presence of myeloperoxidase in the blast cytoplasm. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A very rare congenital cranial dysinnervation disorder characterised by unilateral or bilateral non progressive congenital facial palsy (VII cranial nerve) with impairments of ocular abduction (VI cranial nerve). It can also be associated with other cranial nerves palsies, orofacial anomalies and limb defects. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare syndromic neurological disorder characterized by the association of Möbius syndrome (congenital facial palsy with impaired ocular abduction) with peripheral axonal neuropathy and hypogonadotropic hypogonadism. There have been no further reports since 1996. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare hematologic disease characterized by symptoms of mast cell activation in the absence of cutaneous findings, as well as absence of diagnostic criteria of systemic mastocytosis with tryptase levels of less than 20 ng/ml and normal to low burden of mast cells. Bone marrow biopsy reveals the presence of monoclonal mast cells carrying the KIT D816V mutation and/or expressing CD25. Patients present with recurrent episodes of flushing, headache, hypotension, abdominal cramping, nausea, diarrhea, cardiac arrhythmias, bronchoconstriction, and bleeding diathesis, among others. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Monosomy 13q14 is a rare chromosomal anomaly syndrome, resulting from a partial deletion of the long arm of chromosome 13, characterized by developmental delay, variable degrees of intellectual disability, retinoblastoma and craniofacial dysmorphism (including micro/dolichocephaly, high and broad forehead, prominent eyebrows, thick, anteverted ear lobes, short nose with a broad nasal bridge and bulbous tip, prominent philtrum, large mouth with thin upper lip and thick, everted lower lip). Other features reported include high birth weight, macrocephaly, pinealoma, hepatomegaly, inguinal hernia and cryptorchidism. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Monosomy 13q34 is a rare chromosomal anomaly syndrome, resulting from the partial deletion of the long arm of chromosome 13, principally characterized by global developmental delay, mild intellectual disability, obesity and mild craniofacial dysmorphism (microcephaly, wide rectangular forehead, downslanting palpebral fissures, mild ptosis, prominent nose with long nasal bridge and broad tip, small chin). Other variable reported features include congenital heart defects, hand and foot anomalies (e.g. polydactyly) and agenesis of the corpus callosum. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Monosomy 9p is a rare chromosomal anomaly characterized by psychomotor developmental delay, facial dysmorphism (trigonocephaly, midface hypoplasia, upslanting palpebral fissures, dysplastic small ears, flat nasal bridge with anteverted nostrils and long philtrum, micrognathia, choanal atresia, short neck), single umbilical artery, omphalocele, inguinal or umbilical hernia, genital abnormalities (hypospadia, cryptorchidism), muscular hypotonia and scoliosis. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Interstitial 9q22.3 microdeletion is associated with a phenotype including macrocephaly, overgrowth and trigonocephaly. Psychomotor delay, hyperactivity and distinctive facial features were also observed. It has been described in two unrelated children. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Morvan syndrome is a rare, life-threatening, acquired neurologic disease characterized by neuromyotonia, dysautonomia and encephalopathy with severe insomnia. Signs involving central (e.g. hallucinations, confusion, amnesia, myoclonus), autonomic (e.g. variations in blood pressure, hyperhidrosis) and peripheral (e.g. painful cramps, myokymia) hyperactivity, as well as systemic manifestations (such as weight loss, pruritus, fever), are reported. Thymoma is present in some cases. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare mosaic form of Legius syndrome with findings typical of Legius syndrome, namely multiple cafe-au-lait macules (CALMs) with or without axillary or inguinal freckling. Mosaic form is caused by postzygotic pathogenic variants in SPRED1 gene. In mosaic Legius syndrome the allelic/tissue distribution of the pathogenic SPRED1-variant clearly suggests mosaicism and/or the distribution of CALMs is segmental. The phenotype can be milder than in Legius syndrome. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare mosaic form of neurofibromatosis type 1 (NF1) characterised by findings typical of NF1, namely multiple cafe-au-lait macules (CALMs), cutaneous neurofibromas, skinfold freckling/lentiginous macules, iris Lisch nodules and tumours of the nervous system. Mosaic form is caused by postzygotic pathogenic variants in NF1-gene. In mosaic NF1 the allelic/tissue distribution of the pathogenic NF1-variant clearly suggests mosaicism and/or the distribution of CALMs and cutaneous neurofibromas is segmental. The phenotype can be milder than in NF1. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare mosaic form of NF2-related schwannomatosis characterised by findings typical of NF2-related schwannomatosis, namely development of multiple benign nerve sheath tumours, particularly affecting the vestibular nerve. Mosaic form is caused by postzygotic pathogenic variants in NF2. In mosaic NF2-related schwannomatosis the allelic/tissue distribution of the pathogenic NF2 variant clearly suggests mosaicism. The phenotype can be milder than in NF2-related schwannomatosis. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare autosomal trisomy, characterized by reduced fetal movements and intrauterine growth retardation, low birth weight, and multiple congenital anomalies. The latter include, amongst others, facial dysmorphism (like hypertelorism, cleft lip/palate, micrognathia, low hairline, and small, low-set, and posteriorly rotated ears), head circumference below average, deformities of the hands (camptodactyly) and feet, marked hypertrichosis, and anomalies of the brain, heart, and lungs. Lethality appears to depend on the degree of mosaicism. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 10 is a rare chromosomal anomaly syndrome, with a highly variable phenotype, principally characterized by growth delay, craniofacial dysmorphism (including prominent forehead, hypertelorism, upslanting palpebral fissures, blepharophimosis, low-set malformed large ears, high arched palate, cleft lip/palate, retrognathia) and cardiac, renal and skeletal (e.g. radial ray defects, scoliosis) malformations, with death usually occurring neonatally or in early infancy. Other reported features include central nervous system and ear anomalies, as well as facial clefts and anal atresia. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 12 is a rare chromosomal anomaly syndrome, with a highly variable phenotype, principally characterized by developmental or growth delay, short stature, craniofacial dysmorphism (e.g. turricephaly, tall forehead, downslanting palpebral fissures, posteriorly rotated and low set ears, narrow palate), congenital heart defects (e.g. atrial septal defect, patent ductus arteriosus), hypotonia, and pigmentary dysplasia. Scoliosis, hearing loss, facial/body asymmetry, and intellectual disability have also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 15 is a rare chromosomal anomaly syndrome principally characterized by intrauterine growth restriction, congenital cardiac anomalies (including ventricular and atrial septal defects, patent ductus arteriosus) and craniofacial dysmorphism (including hypertelorism, downslanting palpebral fissures, wide nasal bridge). Patients also present brain (e.g. hypoplastic cerebellum, ventricular asymmetry), renal (e.g. small dysplastic kidneys), and/or genital (undescended testis, small penis, hypoplastic labia majora) anomalies. Digital and skin pigmentation abnormalities have also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 16 syndrome |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 17 is a rare chromosomal anomaly syndrome, with a highly variable clinical presentation, mostly characterized by growth delay, intellectual disability, body asymmetry with leg length differentiation, scoliosis, and congenital heart anomalies (e.g. ventricular septal defect). Prenatal ultrasound findings include intrauterine growth retardation, nuchal thickening brain anomalies (e.g. cerebellar hypoplasia), pleural effusion and single umbilical artery. Patients with no associated malformations have also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 2 is a rare chromosomal anomaly syndrome, with a highly variable phenotype, principally characterized by intrauterine growth restriction, growth and motor delay, craniofacial dysmorphism (e.g. microcephaly, hypertelorism, micro/anophthalmia, midface hypoplasia, cleft lip/palate), congenital heart and neural tube defects, as well as various skeletal (e.g. scoliosis, radioulnar hypoplasia, preaxial polydactyly) and gastrointestinal (e.g. intestinal malrotation, Hirschsprung disease) anomalies. Central nervous system malformations (including ventriculomegaly, thin corpus callosum, spina bifida) have also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 20 is a rare chromosomal anomaly syndrome with a highly variable phenotype ranging from normal (in the majority of cases) to a mild, subtle phenotype principally characterized by spinal abnormalities (i.e. stenosis, vertebral fusion, and kyphosis), hypotonia, lifelong constipation, sloped shoulders, skin pigmentation abnormalities (i.e. linear and whorled nevoid hypermelanosis) and significant learning disabilities despite normal intelligence. More severe phenotypes, with patients presenting psychomotor and speech delay, mild facial dysmorphism, cardiac (i.e. ventricular septal defect, dysplastic tricuspid mitral valve) and renal anomalies (e.g. horseshoe kidneys), have also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mosaic trisomy 22 is a rare chromosomal anomaly syndrome, with a highly variable phenotype, principally characterized by prenatal and postnatal growth delay, mild to severe intellectual disability, hemiatrophy, webbed neck, ocular and cutaneous pigmentary anomalies, craniofacial dysmorphic features (e.g. microcephaly, upslanted palpebral fissures, ptosis, ear malformations, flat nasal bridge, micrognathia) and cardiac abnormalities (including ventricular and atrial septal defect, pulmonary or aortic stenosis). Hearing loss and limb malformations (e.g. cubitus valgus, syn/brachydactyly), as well as renal and genital anomalies, have also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
FHIR