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| A rare mitochondrial disease that has a heterogeneous clinical presentation characterized by the association of progressive sensorineural hearing loss with hypertrophic cardiomyopathy and, in the majority of cases, encephalomyopathy symptoms such as ataxia, slurred speech, progressive external ophthalmoparesis (PEO), muscle weakness, myalgia, and exercise intolerance. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Maternally-inherited mitochondrial dystonia is a rare neurological mitochondrial DNA-related disorder characterized clinically by progressive pediatric-onset dystonia with variable degrees of severity. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, genetic congenital malformation syndrome characterized by bilateral anophthalmia (or less commonly microphthalmia) in association with a variable combination of the following: pulmonary hypoplasia or agenesis, congenital diaphragmatic hernia or eventration, and variable cardiovascular defects (congenital heart defects and/or pulmonary artery atresia). Intellectual disability is noted in surviving patients. Other variable malformations affecting different organ systems, as well as facial dysmorphism, may be observed. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare developmental anomaly characterized by midfacial hypoplasia affecting primarily the anterior part of the maxilla (premaxilla) and the nasal complex. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare spectrum of Mullerian duct anomalies characterised by congenital aplasia of the uterus and upper two-thirds of the vagina in otherwise phenotypically normal females. It can be classified as either Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome type 1 (corresponding to isolated utero-vaginal aplasia) or MRKH syndrome type 2 (utero-vaginal aplasia associated with other malformations). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| McCune Albright syndrome (disorder) |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| McDonough syndrome is a rare, multiple congenital anomalies/dysmorphic syndrome characterized by facial dysmorphism (prominent superciliary arcs, synophrys, strabismus, large, anteverted ears, large nose, malocclusion of teeth), delayed psychomotor development, intellectual disability and congenital heart defects (e.g. pulmonic stenosis, patent ductus arteriosus, atrial septal defect). Additional features include thorax deformation (pectus excavatum/carinatum), kyphoscoliosis, diastasis recti and cryptorchidism. There have been no further descriptions in the literature since 1984. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| McLeod neuroacanthocytosis syndrome (MLS) is a form of neuroacanthocytosis and is characterized clinically by a Huntington's disease-like phenotype with an involuntary hyperkinetic movement disorder, psychiatric manifestations and cognitive alterations, and biochemically by absence of the Kx antigen and by weak expression of the Kell antigens. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Meacham syndrome is a multiple malformation syndrome characterized by congenital diaphragmatic abnormalities, genital defects and cardiac malformations. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare frontonasal dysplasia characterized by median cleft of the upper lip (MCL), midline polyps of the facial skin, nasal mucosa, and pericallosal lipomas. Hypertelorism with ocular anomalies are also observed, generally with normal neuropsychological development. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare familial facial anomaly characterized by a nodule beneath the vermilion border of the upper lip that tapered into the frenulum. The lesion is soft, easily compressible and asymptomatic. It can be wide (up to 8 mm) or flat and less prominent. Regression of the nodule by age has been reported. There have been no further descriptions in the literature since 1994. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Medich giant platelet syndrome (MGPS) is a platelet granule disorder characterized by thrombocytopenia with giant platelets resulting in easy bleeding. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic, skeletal muscle disease with characteristics of early-onset hypotonia, muscle weakness, global developmental delay with intellectual disability and cardiomyopathy. Congenital structural heart defects and ichthyosiform cutaneous lesions have also been associated. Muscle biopsy shows characteristic enlarged mitochondria located at the periphery of muscle fibres. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Megakaryoblastic acute myeloid leukemia with t(1;22)(p13;q13) is a rare subtype of acute myeloid leukemia with recurrent cytogenetic abnormalities characterized by clonal proliferation of myeloid blasts with predominantly megakaryoblastic differentiation in the bone marrow and blood, often with extensive infiltration of the abdominal organs. It occurs typically in infants and usually presents with hepatosplenomegaly, anemia, thrombocytopenia and nonspecific symptoms related to ineffective hematopoiesis (fatigue, bleeding and bruising, recurrent infections). Myelofibrosis and fibrosis of other infiltrated organs is also characteristic of this disease. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare syndrome with a central nervous system malformation as a major feature characterized by macrocephaly, megalencephaly, bilateral perisylvian polymicrogyria, variable degrees of ventriculomegaly/hydrocephalus, developmental delay and intellectual disability, oromotor dysfunction, hypotonia, seizures, and dysmorphic facial features (such as frontal bossing, low-set ears, a flat nasal bridge, and high-arched palate). Postaxial polydactyly of one or more extremities is also common. |
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 overgrowth and macrocephaly with megalencephaly apparent at birth, global developmental delay, intellectual disability, and dysmorphic facial features (including frontal bossing, long face, sparse eyebrows, hypertelorism, downslanting palpebral fissures, and prognathism). Patients may exhibit tall stature with dolichostenomelia, arachnodactyly, kyphoscoliosis, and joint laxity, as well as neurologic manifestations, such as hypotonia, gait ataxia, or seizures. Brain imaging may show increased white matter volume, thick corpus callosum, or small cerebellum. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Megalocornea-intellectual disability syndrome is a rare intellectual disability syndrome most commonly characterized by megalocornea, congenital hypotonia, varying degrees of intellectual disability, psychomotor/developmental delay, seizures, and mild facial dysmorphism (including round face, frontal bossing, epicanthal folds, large low set ears, broad nasal base, anteverted nostrils, and long upper lip). Interfamilial and intrafamilial clinical variability has been reported. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Glaucoma secondary to spherophakia/ectopia lentis and megalocornea is a rare, genetic, non-syndromic developmental defect of the eye disorder characterized by congenital megalocornea associated with spherophakia and/or ectopia lentis leading to pupillary block and secondary glaucoma. Additional features may include flat irides, iridodonesis, axial myopia, very deep anterior chambers, miotic, oval pupils without well-defined borders, ocular pain and irritability manifesting as conjunctival injection, corneal edema and central scarring, as well as a high arched palate. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| MITF-related melanoma and renal cell carcinoma predisposition syndrome is an inherited cancer-predisposing syndrome due to a gain-of-function germline mutation in the MITF gene, associated with a higher incidence of amelanotic and nodular melanoma, multiple primary melanomas and increase in nevus number and size. It may also predispose to co-occurring melanoma and renal cell carcinoma and to pancreatic cancer. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Melanoma and neural system tumor syndrome is an extremely rare tumor association characterized by dual predisposition to melanoma and neural system tumors. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Melhem-Fahl syndrome was described in two siblings born to consanguineous parents in 1985 and was characterised by the presence of 15 dorsal vertebrae and rib pairs. No other cases have been documented since the initial report. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare autosomal dominant hereditary axonal motor and sensory neuropathy characterized by adult onset of slowly progressive distal muscle weakness and atrophy, sensory impairment, and hyporeflexia beginning in the lower limbs. Progressive gait disturbance may lead to loss of independent ambulation in some patients at a higher age. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mendelian susceptibility to mycobacterial diseases (MSMD) due to complete interferon gamma receptor 1 (IFN-gammaR1) deficiency is a genetic variant of MSMD characterized by a complete deficiency in IFN-gammaR1, leading to impaired IFN-gamma immunity and, consequently, to severe and often fatal infections with bacillus Calmette-Guérin (BCG) and other environmental mycobacteria (EM). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mendelian susceptibly to mycobacterial diseases (MSMD) due to complete interferon gamma receptor 2 (IFN-gammaR2) deficiency is a genetic variant of MSMD characterized by a complete deficiency in IFN-gammaR2, leading to an undetectable response to IFN-gamma, and consequently, to severe and often fatal infections with bacillus Calmette-Guérin (BCG) and other environmental mycobacteria (EM). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mendelian susceptibility to mycobacterial diseases (MSMD) due to complete ISG15 deficiency is a genetic variant of MSMD characterized by Bacille Calmette-Guérin (BCG) infections. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mendelian susceptibility to mycobacterial diseases (MSMD) due to complete interleukin-12 receptor subunit beta-1 (IL12RB1) deficiency is a genetic variant of MSMD characterized by mild bacillus Calmette-Guérin (BCG) infections and recurrent Salmonella infections. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mendelian susceptibility to mycobacterial diseases (MSMD) due to complete interleukin-12 subunit beta (IL12B) deficiency is a genetic variant of MSMD characterized by mild bacillus Calmette-Guérin (BCG) infections and recurrent Salmonella infections. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mendelian susceptibility to mycobacterial diseases (MSMD) due to partial IRF8 (interferon regulatory factor 8) deficiency is a rare genetic variant of MSMD characterized by a selective susceptibility to relatively mild infections with bacillus Calmette-Guérin (BCG). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mendelian susceptibility to mycobacterial diseases (MSMD) due to partial STAT1 (signal transducer and activator of transcription 1) deficiency is a genetic variant of MSMD characterized by a partial defect in the interferon (IFN)-gamma pathway, leading to mild mycobacterial infections. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, mostly benign, neoplastic disease characterized by a primary tumor of the meninges, usually located intracranially (approximately 90%) but spinal meningiomas occur as well. Clinical symptoms relate to the location of the tumor and may include seizures, focal neurological deficits (sensory-motor or visual symptoms, cranial nerve dysfunction), vascular complications (occlusion of cerebral blood vessels, deep venous thrombosis, pulmonary embolism), chronically increased intracranial pressure neurocognitive impairment and/or loss of bladder/anus sphincter control. |
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 intellectual disability, developmental delay, autistic behavior, short stature, and microcephaly. Additional variable manifestations include feeding problems, vision and hearing impairments, recurrent upper airway infections, and epilepsy. Reported malformations are cryptorchidism and cerebral anomalies. Dysmorphic facial features include short and upslanted palpebral fissures, ptosis, telecanthus, depressed nasal ridge, short nose, anteverted nares, short columella, and long philtrum. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare anomaly of puberty or/and menstrual cycle characterized by recurrent fevers (higher than 38 degrees Celsius) associated with the luteal phase of the menstrual cycle in women. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Hepatic cystic hamartoma, also named mesenchymal hamartoma of liver, is a rare benign liver tumor of childhood, usually before the age of 2, of mesenchymal origin and variable clinical presentation (abdominal dissension, abdominal mass, pain, vomiting and signs of inferior vena cava compression). |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mesial temporal lobe epilepsy with hippocampal sclerosis is a rare epilepsy syndrome defined by seizures originating in limbic areas of the mesial temporal lobe, particularly in the hippocampus, amygdala, and in the parahippocampal gyrus and its connections, and hippocampal sclerosis, usually unilateral or asymmetric. It is frequently associated with an initial precipitating event, such as febrile seizures, hypoxia, intracranial infection or head trauma, most often occurring in the first five years of life, followed by a latent period without seizures. Typical seizures consist of a characteristic aura that is frequently a rising epigastric sensation associated with emotional disturbances, illusions, and autonomic symptoms (widened pupils, palpitations), progressive impairment of consciousness, oro-alimentary automatisms (lip smacking, chewing, licking, tooth grinding), behavioral arrest, head deviation, dystonic postures, hand and verbal automatisms. Seizures are followed by postictal dysfunction. Initially, seizures are easily controlled with antiepileptic drugs, later they frequently become refractory and associated with progressive behavioral changes and memory deficits. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare non-syndromic syndactyly characterized by mesoaxial reduction of fingers, complete syndactyly of the 3rd and 4th fingers with synostoses of the corresponding metacarpals and associated single phalanges, malformed thumbs, and hypoplasia and clinodactyly of the 5th finger. Preaxial webbing of toes with terminal phalangeal hypoplasia of all toes has been reported in association. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mesomelic dysplasia Kantaputra type (MDK) is a rare skeletal disease characterized by symmetric shortening of the middle segments of limbs and short stature. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Mesomelic dysplasia, Savarirayan type is characterized by severely hypoplastic and triangular-shaped tibiae, and absence of the fibulae. So far, two sporadic cases have been described. Moderate mesomelia of the upper limbs, proximal widening of the ulnas, pelvic anomalies and marked bilateral glenoid hypoplasia were also reported. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare disorder characterized by disproportionate short stature from birth with dysplasia of the ulna and fibula. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare multiple congenital anomalies/dysmorphic syndrome characterised by developmental delay and intellectual disability, epileptic encephalopathy, horseshoe or hypoplastic kidney, failure to thrive, hypertrichosis of the limbs and respiratory problems (including apnoea, multicompartmental respiratory disease, intermittent hyperventilation) along with mesomelic dysplasia (Nievergelt/Savarirayan type). Dysmorphic facial features may include microcephaly, synophrys, large nose with prominent nasal tip and low hanging columella, protruding ears, smooth/short philtrum, wide mouth with square upper lip, widely spaced teeth and micrognathia. Strabismus, myopia, cortical visual impairment and hearing loss can also be present. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Metabolic myopathy due to lactate transporter defect is a rare metabolic myopathy characterized by muscle cramping and/or stiffness after exercise (especially during heat exposure), post-exertional rhabdomyolysis and myoglobinuria, and elevation of serum creatine kinase. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Metaphyseal chondrodysplasia, Kaitila type is a rare multiple metaphyseal dysplasia disease characterized by disproportionate short stature, short limbs and digits, tracheobronchial malacia and progressive thoracolumbar scoliosis. Radiographic imaging shows progression from marked metaphyseal dysplasia of tubular bones in childhood to short and broad bones with mild dysplasia of the joints in adulthood. There have been no further descriptions in the literature since 1982. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Metaphyseal chondromatosis with D-2-hydroxyglutaric aciduria is an extremely rare genetic disorder characterized by the unique association of enchondromatosis with D-2 hydroxyglutaric aciduria. Clinical features include enchondromatosis (with short stature, severe metaphyseal dysplasia and mild vertebral involvement), elevated levels of urinary 2-hydroxyglutaric acid and mild developmental delay. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| 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. |
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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. |
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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 |
| A rare X-linked genomic disorder associated with interstitial chromosomal duplications at Xq28 encompassing the MECP2 gene. It is characterised in males by infantile onset hypotonia, severe global developmental delay, intellectual disability, progressive spasticity, seizures, gastrointestinal symptoms and recurrent respiratory infections. In females, the phenotype is more variable. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare inherited disorder of leucine metabolism characterised by a highly variable clinical picture ranging from metabolic crisis in infancy to asymptomatic adults. |
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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. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Methylmalonic aciduria due to transcobalamin receptor defect is a rare metabolite absorption and transport disorder characterized by a moderate increase of methylmalonic acid (MMA) in the blood and urine due to decreased cellular uptake of cobalamin resulting from decreased transcobalamin receptor function. Patients are usually asymptomatic however, screening reveals increased C3-acylcarnitine and MMA in plasma. Serum homocysteine levels may vary from normal to moderately elevated and retinal vascular occlusive disease, resulting in severe visual loss, has been reported. |
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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. |
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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. |
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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. |
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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.). |
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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. |
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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. |
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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). |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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). |
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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. |
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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. |
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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 |
| Microcephaly-polymicrogyria-corpus callosum agenesis syndrome is a rare, genetic, central nervous system malformation syndrome characterized by marked prenatal-onset microcephaly, severe motor delay with hypotonia, bilateral polymicrogyria, corpus callosum agenesis, ventricular dilation, small cerebellum and early lethality. |
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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 |
| Microcephaly-short stature-intellectual disability-facial dysmorphism syndrome is a rare genetic malformation syndrome with short stature characterized by postnatal microcephaly, failure to thrive and short stature, global developmental delay and intellectual disability, hypotonia, dysmorphic features (short nose, depressed nasal bridge, low set ears, short neck, clinodactyly and cutaneous syndactyly of T2-3 at birth and broad forehead, midface retrusion, epicanthal folds, laterally sparse eyebrows, short nose, long philtrum, widely spaced teeth, micrognathia and coarsening of facial features later in life). Other associated features include postnatal transient generalized edema, myopia, strabismus, hypothyroidism. |
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 syndromic chorioretinal dystrophy characterized by childhood onset of mild to severe myopia with microcornea and chorioretinal atrophy, typically associated with telecanthus and posteriorly rotated ears. Other variable features include early-onset cataracts, ectopia lentis, ectopia pupillae and retinal detachment. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare developmental defect of the eye characterized by bilateral microcornea, posterior megalolenticonus, persistent fetal vasculature (extending from the posterior pole of the lens to the optic disc) and posterior chorioretinal coloboma. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| MRCS syndrome is a rare, genetic retinal dystrophy disorder characterized by bilateral microcornea, rod-cone dystrophy, cataracts and posterior staphyloma, in the absence of other systemic features. Night blindness is typically the presenting manifestation and nystagmus, strabismus, astigmatism and angle closure glaucoma may be associated findings. Progressive visual acuity deterioration, due to pulverulent-like cataracts, results in poor vision ranging from no light perception to 20/400. |
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. |
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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. |
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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. |
en |
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 |
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