900000000000509007: United States of America English language reference set (foundation metadata concept)

SNOMED CT Concept\SNOMED CT Model Component\Foundation metadata concept (foundation metadata concept)\Reference set\Language type reference set (foundation metadata concept)\English [International Organization for Standardization 639-1 code en] language reference set (foundation metadata concept)\US English

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT model component module (core metadata concept)

Descriptions:

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
US English	Is a	English [International Organization for Standardization 639-1 code en] language reference set (foundation metadata concept)	true	Inferred relationship	Some

Members	acceptabilityId
A form of congenital disorders of N-linked glycosylation characterized by hypotonia, intractable seizures, developmental delay, microcephaly and severe fetal hypokinesia. Additional features that may be observed include apnea and respiratory deficiency, cataracts, joint contractures, vermian hypoplasia, dysmorphic features (esotropia, arched palate, micrognathia, finger clinodactyly, single flexion creases) and feeding difficulties. The disease is caused by loss-of-function mutations in the gene DPAGT1 (11q23.3).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation characterized by iris coloboma, cataract, infantile spasms, developmental delay and abnormal coagulation factors. The disease is caused by loss-of-function mutations in the gene ALG2 (9q31.1). Transmission is autosomal recessive.	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation characterized by microcephaly, hepatomegaly, edema of the extremities, intractable seizures and recurrent infections and increased bleeding tendency. The disease is caused by mutations in the gene ALG13 (Xq23).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation that is characterized by gastrointestinal symptoms (diarrhea, vomiting, feeding problems with failure to thrive, protein-losing enteropathy), edema and ascites (including hydrops fetalis), hepatomegaly, renal tubulopathy, coagulation anomalies due to thrombocytopenia, brain involvement (psychomotor delay, seizures, ataxia), facial dysmorphism (low-set ears and retrognathia), pes equinovarus, and muscular hypotonia. Cataracts may also be observed. Prognosis is usually poor. The disease is caused by loss-of-function mutations in the gene ALG8 (11q14.1), resulting in a block in the initial step of protein glycosylation.	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of developmental delay, intellectual disability, failure to thrive, hypotonia and seizures. Caused by mutations in the gene STT3A (11q23.3).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of distal arthrogryposis (mild flexion contractures of the fingers, deviation of the distal phalanges, swan-neck deformity), retro-micrognathia, general muscle hypotonia, delayed psychomotor development, autism spectrum disorder (speech delay, abnormal use of speech, difficulties in initiating, understanding and maintaining social interaction, limited non-verbal communication), seizures, microcephaly and mild to moderate intellectual disability that becomes apparent with age. The disease is caused by mutations in the gene SLC35A3 (1p21).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of facial dysmorphism (large, posteriorly rotated ears with prominent antihelices, convex nasal ridge, open mouth, large and crowded teeth), stereotypic hand movements, seizures and varying degrees of developmental delay. A bleeding tendency is also observed and this results from diminished platelet aggregation. The disease is caused by loss-of-function mutations in the gene MGAT2 (14q21).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of facial dysmorphism (microcephaly, high forehead, low posterior hairline, strabismus), hypotonia, failure to thrive, intractable seizures, developmental delay, persistent vomiting and gastric bleeding. Additional features that may be observed include fat pads anomalies, inverted nipples, and body temperature oscillation. The disease is caused by mutations in the gene ALG11 (13q14.3).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of failure to thrive, developmental delay, hypotonia, strabismus and hepatic dysfunction. The disease is caused by mutations in the gene DDOST (1p36.1).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of intellectual disability, delayed motor development, hypotonia and truncal obesity. Additional features include slight facial dysmorphism (hypertelorism, downslanting palpebral fissures, large, low-set ears, hypoplastic nasolabial fold, thin upper lip), hypermobility of the joints and skin laxity. The disease is caused by mutations in the gene MAN1B1 (9q34.3).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of intrauterine growth retardation, microcephaly, failure to thrive, developmental delay, intellectual disability, hypotonia, seizures, optic nerve atrophy and respiratory difficulties. Genital abnormalities (micropenis, hypoplastic scrotum, undescended testes) have also been reported. Caused by mutations in the gene STT3B (3p24.1).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of neurologic abnormalities (global developmental delay in language, social skills and fine and gross motor development, intellectual disability, hypotonia, microcephaly, seizures/epilepsy), facial dysmorphism (deep set eyes, large ears, hypoplastic vermillion of upper lip, large mouth with widely spaced teeth), feeding problems often due to chewing difficulties and aversion to food with certain textures, failure to thrive, gastrointestinal abnormalities (reflux or vomiting) and strabismus. The disease is caused by mutations in the gene SSR4 (Xq28).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of poorly coordinated suck resulting in difficulty feeding and failure to thrive; myoclonic jerks with hypotonia and brisk reflexes progressing to a seizure disorder; roving eyes; developmental delay; poor to absent visual contact; and sensorineural hearing loss. Additional features that may be observed include coagulation factor abnormalities, inverted nipples and microcephaly. The disease is caused by mutations in the gene RFT1 (3p21.1).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of progressive microcephaly, hypotonia, developmental delay, drug-resistant infantile epilepsy and hepatomegaly. Additional features that may be observed include failure to thrive, pericardial effusion, renal cysts, skeletal dysplasia, facial dysmorphism (frontal bossing, hypertelorism, depressed nasal bridge, low-seated ears, large mouth) and hydrops fetalis. The disease is caused by loss-of-function mutations in the gene ALG9 (11q23).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of psychomotor delay-dysmorphism (pectus carinatum, dorsolumbar kyphosis and severe scoliosis, short distal phalanges, genua vara, pedes planovalgi syndrome) with postnatal growth deficiency and major skeletal involvement. Additional features include facial dysmorphism (midface hypoplasia, internal strabism of the right eye, low-set ears, moderately high arched palate, small teeth), nephrotic syndrome, cardiac defects, and feeding problems. The disease is caused by mutations in the gene TMEM165 (4q12).	Preferred (foundation metadata concept)
A form of congenital disorders of N-linked glycosylation with characteristics of severe neurological involvement, including hypotonia, developmental delay, intellectual disability, postnatal microcephaly, and progressive brain and cerebellar atrophy. Epilepsy with hypsarrythmia is frequently reported. Additional features that may be observed include failure to thrive, arthrogryposis multiplex congenita, vision impairment (optic atrophy, iris coloboma) and facial dysmorphism (hypertelorism with a broad nasal bridge, large and thick ears, thin lips, micrognathia). Caused by loss-of-function mutations of the gene ALG3 (3q27.3).	Preferred (foundation metadata concept)
A form of cyanosis that occurs when there is a decrease in oxygen saturation in the arterial blood, usually with an SaO2 of below 75%.	Preferred (foundation metadata concept)
A form of diazoxide-sensitive diffuse hyperinsulinism caused by a lowered threshold for insulin release. Characterized by excessive/uncontrolled insulin secretion and recurrent episodes of profound hypoglycemia induced by fasting and protein rich meals, requiring rapid and intensive treatment to prevent neurological sequelae. Activating mutations of GCK (7p15.3-p15.1) that encodes glucokinase have been identified as the cause.	Preferred (foundation metadata concept)
A form of diazoxide-sensitive diffuse hyperinsulinism characterized by episodes of hypoglycemia induced by exercise due to an inappropriate lactate and pyruvate sensitivity in pancreatic beta-cells. Patients present with recurring episodes of hypoglycemia associated with elevated insulin levels, within 30 minutes of a short period of anaerobic exercise. The degree of hypoglycemia associated with exercise is variable and is only partially responsive to diazoxide. Mutations in the promoter element of SLC16A1 leads to an inappropriate presence of monocarboxylic acid transporter 1(MCT1). Mutations of the promoter region of SLC16A1 that permit gene expression in pancreatic beta-cells identified to date are dominant.	Preferred (foundation metadata concept)
A form of diazoxide-sensitive diffuse hyperinsulinism characterized by hypoglycemic episodes from the neonatal period, a good clinical response to diazoxide and a probable transient nature of the disease with spontaneous resolution.	Preferred (foundation metadata concept)
A form of diazoxide-sensitive diffuse hyperinsulinism characterized by hypoglycemic episodes that are usually mild, escaping detection during infancy and usually a good clinical response to diazoxide. Autosomal dominant hyperinsulinism due to SUR1 deficiency usually has a milder phenotype when compared to that resulting from recessive K-ATP mutations.	Preferred (foundation metadata concept)
A form of diazoxide-sensitive diffuse hyperinsulinism characterized by hypoglycemic episodes that are usually mild, escaping detection during infancy, and usually a good clinical response to diazoxide, (but some are diazoxide resistant). Usually has a milder phenotype when compared to that resulting from recessive K+ channel mutations.	Preferred (foundation metadata concept)
A form of diazoxide-sensitive diffuse hyperinsulinism characterized by macrosomia, transient or persistent hyperinsulinemic hypoglycemia, responsiveness to diazoxide and a propensity to develop maturity-onset diabetes of the young subtype 1. The disease frequently presents as neonatal hypoglycemia. All patients are responsive to medical management with diazoxide. Family history of diabetes is usually, but not always present. Caused by mutations in HNF4A gene (20q13.12). The transmission is autosomal dominant with variable penetrance.	Preferred (foundation metadata concept)
A form of diazoxide-sensitive diffuse hyperinsulinism, characterized by transient or persistent hyperinsulinemic hypoglycemia in infancy that is responsive to diazoxide, evolving in to maturity-onset diabetes of the young subtype 1 later in life.	Preferred (foundation metadata concept)
A form of diffuse palmoplantar keratoderma that occurs between the ages of 5 and 15 and may be associated with the subsequent development of esophageal cancer.	Preferred (foundation metadata concept)
A form of dyskinetic cerebral palsy with a combination of chorea and athetosis; movements are irregular, but twisting and curving.	Preferred (foundation metadata concept)
A form of dyskinetic cerebral palsy with involuntary movements accompanied by an abnormal, sustained posture.	Preferred (foundation metadata concept)
A form of dyskinetic cerebral palsy with irregular movements that are not repetitive or rhythmic, and tend to be more jerky and shaky.	Preferred (foundation metadata concept)
A form of dyskinetic cerebral palsy with slow, writhing movements that are often repetitive, sinuous, and rhythmic.	Preferred (foundation metadata concept)
A form of eccentric contraction designed to break adhesions using an operator-induced force to lengthen the muscle and in which, the counterforce is greater than the patient force.	Preferred (foundation metadata concept)
A form of ectodermal dysplasia syndrome with characteristics of short stature of prenatal onset, alopecia, ichthyosis, photophobia, ectrodactyly, seizures, scoliosis, multiple contractures, fusions of various bones, particularly elbows, carpals, metacarpals, and spine, intellectual disability and facial dysmorphism.	Preferred (foundation metadata concept)
A form of ectodermal dysplasia syndrome with characteristics of trichodysplasia, with absent eyebrows and eyelashes, onychodysplasia, mild retrognathia, abnormal dermatoglyphics (excess of whorls on fingertips, radial loop on finger, hypothenar pattern), intellectual disability and normal teeth and sweating. Additional variable manifestations include high implanted or prominent ears, mild hearing loss, supernumerary nipple, café-au-lait spots, keratosis pilaris, and irregular menses. To date, four individuals from 2 generations of a consanguineous family of Portuguese descent have been described in the literature. Males and females were equally affected. Hidrotic ectodermal dysplasia, Halal type is inherited in an autosomal recessive manner.	Preferred (foundation metadata concept)
A form of ectodermal dysplasia with characteristics of dystrophy of the distal part of the nails and trichodysplasia. It has been described in only one family. Transmission is autosomal recessive.	Preferred (foundation metadata concept)
A form of ectodermal dysplasia with hair, teeth and nail involvement. The disease has predominant characteristics of hypodontia, hypotrichosis, delayed hair growth and brittle nails. Additionally focal dermal hypoplasia, irregular hyperpigmentation, hypoplastic or absent nipples, amastia, hearing impairment, congenital hip dislocation and asthma have been associated. There have been no further descriptions in the literature since 1996.	Preferred (foundation metadata concept)
A form of familial primary hypomagnesemia characterized by low serum magnesium values but normal urinary magnesium values. The typical clinical features are recurrent muscle cramps, episodes of tetany, tremor, and muscle weakness, especially in distal limbs. The disease is potentially fatal. The disease has only been described in one large Brazilian kindred with 46 family members, of whom 21 were affected. Caused by a N255D mutation in the KCNA1 gene (12p13), which encodes the voltage-gated potassium channel Kv1.1. Mutations in KCNA1 result in a nonfunctional channel protein, with a dominant negative effect on wild-type Kv1.1 channel function, which is involved in the maintenance of membrane voltage and optimal function of the TRPM6 channel. Transmission is autosomal dominant.	Preferred (foundation metadata concept)
A form of familial primary hypomagnesemia characterized by recurrent urinary tract infections, nephrolithiasis, bilateral nephrocalcinosis, renal magnesium wasting, hypercalciuria and kidney failure. This disease is characterized by impaired tubular reabsorption of magnesium and calcium in the thick ascending limb of Henle's loop due to mutations in CLDN16 (3q27), which encodes claudin-16 (previously known as paracellin 1). A significant residual function is observed in several missense mutations, whereas a complete loss of claudin-16 function appears to be more severe with disease presenting earlier and often progressing to kidney failure at a significantly younger age. Transmission is autosomal recessive.	Preferred (foundation metadata concept)
A form of focal dystonia with characteristics of cervical, laryngeal and hand-forearm dystonia.	Preferred (foundation metadata concept)
A form of frontotemporal dementia characterized by progressive behavioral impairment and a decline in executive function with frontal lobe-predominant atrophy.	Preferred (foundation metadata concept)
A form of frontotemporal dementia with characteristics of agrammatism, laborious speech, alexia, and agraphia, frequently accompanied by apraxia of speech. Language comprehension is relatively preserved.	Preferred (foundation metadata concept)
A form of functioning pancreatic neuroendocrine tumor characterized most commonly by a solitary, small pancreatic lesion that causes hyperinsulinemic hypoglycemia. Insulinoma can present at any age but the median age of diagnosis is in the fifth decade of life. Insulinoma is malignant in only 7-10% of cases and the most common sites of metastasis are the liver and lymph nodes. The etiology is unknown in most sporadic cases but somatic YY1 (14q32.2) variants are associated with insulinoma in some cases. Insulinoma originates in the islet beta cells that are equally distributed throughout the pancreas. When functioning, the tumor manifests with hypersecretion of insulin and consequently causes hypoglycemia. With the exception of insulinoma in MEN1, insulinoma is not hereditary.	Preferred (foundation metadata concept)
A form of generalized enchondromatosis with involvement of the spine (so called spondyloenchondromatosis). Spondyloenchondromatosis is a very rare skeletal dysplasia characterized by severe platyspondyly, and mild involvement of hands and feet. It is though to be inherited as an autosomal recessive condition. Dominant pattern of inheritance has been recently suggested.	Preferred (foundation metadata concept)
A form of genetic LCAT (lecithin-cholesterol acyltransferase) deficiency characterized clinically by corneal opacifications, and biochemically by significantly reduced HDL cholesterol and partial LCAT enzyme deficiency. The disease is very rare. Corneal opacities are progressive and are observed from an early age (adolescence or young adulthood) and sometimes result in visual impairment. These lesions are generally more severe than in complete LCAT deficiency and form a mosaic pattern of small dot-like gray-white opacities. Signs of atherosclerosis have only been reported in rare cases although patients have low HDL cholesterol levels. In patients with this disorder, alpha-LCAT activity is abolished, but beta-LCAT activity is preserved. Impaired enzyme function is thought to result in deposition of lipids in the cornea. The disease follows an autosomal recessive pattern of inheritance.	Preferred (foundation metadata concept)
A form of hereditary nonpolyposis colon cancer characterized by concurrent presentation of a primary tumor of the central nervous system (principally glial tumors), relatively few colonic polyps, and adenomas or colorectal carcinoma.	Preferred (foundation metadata concept)
A form of hereditary spastic paraplegia characterized by either a pure phenotype of slowly progressive spastic paraplegia of the lower extremities with bladder dysfunction and pes cavus or a complex presentation with additional manifestations including cerebellar signs, nystagmus, distal or generalized muscle atrophy and cognitive impairment. Age of onset is highly variable, ranging from early childhood to adulthood. White matter hyperintensity and cerebellar and spinal cord atrophy may be noted on brain magnetic resonance imaging in some patients. The disease is caused by homozygous or compound heterozygous mutation in the CYP7B1 gene on chromosome 8q12.	Preferred (foundation metadata concept)
A form of hereditary spastic paraplegia presenting with either a pure spastic paraplegia phenotype, usually in the first or second decade of life, with spastic lower extremities, unsteady spastic gait, hyperreflexia and extensor plantar responses, or as a complicated phenotype with the additional manifestations of distal wasting, saccadic ocular movements, mild cerebellar ataxia and mild, distal, axonal neuropathy.	Preferred (foundation metadata concept)
A form of hereditary spastic paraplegia which usually presents in late adolescence or early adulthood as a pure phenotype of lower limb spasticity with hyperreflexia and extensor plantar responses, as well as mild bladder disturbances and pes cavus. Rarely, it can present as a complex phenotype with additional manifestations including epilepsy, variable peripheral neuropathy and/or memory impairment. Caused by mutations in the NIPA1 gene (15q11.2) encoding the magnesium transporter NIPA1.	Preferred (foundation metadata concept)
A form of hereditary spastic paraplegia with high intrafamilial clinical variability. Characterized in most cases as a pure phenotype with an adult onset (mainly the third to fifth decade of life, but that can present at any age) with progressive gait impairment due to bilateral lower-limb spasticity and weakness as well as very mild proximal weakness and urinary urgency. In some cases, a complex phenotype is also reported with additional manifestations including cognitive impairment, cerebellar ataxia, epilepsy and neuropathy. A faster disease progression is noted in patients with a later age of onset. Caused by mutations in the SPAST gene (2p24-p21), encoding spastin.	Preferred (foundation metadata concept)
A form of hereditary spastic paraplegia with onset usually in adulthood of progressive bilateral lower limb weakness and spasticity, sphincter dysfunction, decreased vibratory sense at the ankles and with additional manifestations including optical neuropathy, nystagmus, strabismus, decreased hearing, scoliosis, pes cavus, motor and sensory neuropathy, amyotrophy, blepharoptosis and ophthalmoplegia.	Preferred (foundation metadata concept)
A form of hereditary spastic paraplegia with usual characteristics of a pure phenotype of a slowly progressive spastic paraplegia associated with urinary incontinence with an onset in mid to late-adulthood. A complex phenotype, with the additional findings of cognitive impairment, sensorimotor polyneuropathy, ataxia and Parkinsonism as well as thin corpus callosum and white matter lesions (seen on magnetic resonance imaging) has also been reported.	Preferred (foundation metadata concept)
A form of hypotonia-cystinuria type 1 syndrome with characteristics of mild to moderate intellectual disability in addition to classic hypotonia-cystinuria syndrome phenotype (cystinuria type 1, generalized hypotonia, poor feeding, growth retardation and minor facial dysmorphism).	Preferred (foundation metadata concept)
A form of lecithin-cholesterol acyltransferase deficiency (LCAT) characterized clinically by corneal opacities, hemolytic anemia and renal failure and biochemically by severely decreased HDL cholesterol and complete deficiency of the LCAT enzyme. Age of onset and severity of clinical manifestations are variable. Caused by mutations in the LCAT gene (16q22.1) encoding the LCAT enzyme which catalyzes the formation of cholesterol esters in lipoproteins, leading to progressive lipid deposition in body tissues. There is no clear genotype-phenotype correlation since family members with the same mutation have been found to have different clinical and biochemical pictures. Environmental factors or other minor genes may therefore also be involved in the disorder.	Preferred (foundation metadata concept)
A form of leukocyte adhesion deficiency characterized by both severe bacterial infections and a severe bleeding disorder. The disease is extremely rare. Caused by mutations in the FERMT3 gene (11q13.1), which encodes kindlin-3 in hematopoietic cells. The FERMT3 mutations lead to an activation defect of all beta-integrins. Transmission is autosomal recessive.	Preferred (foundation metadata concept)
A form of limb girdle muscular dystrophy with characteristics of muscle weakness affecting the pelvic girdle and especially the iliopsoas muscle. Respiratory impairment may be observed in advanced stages.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy most often with characteristics of an adult onset (but ranging from 11 to 51 years) of mainly proximal lower limb weakness, with difficulties standing on tiptoes being one of the initial signs. Proximal upper limb and distal lower limb weakness is also common as well as atrophy of the quadriceps (most commonly), biceps brachii, and lower leg muscles. However, calf hypertrophy has also been reported in some cases. LGMD2L progresses slowly, with most patients remaining ambulatory until late adulthood.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy presenting in infancy with muscle weakness and delayed motor development (eventually learning to walk at 18 months of age) followed by progressive proximal weakness, pseudohypertrophy of calf muscles, mild facial weakness and borderline intelligence.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy presenting in the first or second decades of life with characteristics of slowly progressive proximal and distal muscle weakness and atrophy. Additional manifestations include contractures of the proximal and distal interphalangeal hand joints, rigid spine, restricted pulmonary function and mild cardiomyopathy.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy that can present from birth to early childhood, the disease has characteristics of hypotonia, microcephaly, mild proximal muscle weakness (leading to delayed walking and difficulty climbing stairs), mild intellectual disability and epilepsy. Additional manifestations reported in some patients include cataracts, nystagmus, cardiomyopathy, and respiratory insufficiency. The disease is caused by homozygous or compound heterozygous mutation in the GMPPB gene, which encodes the beta subunit of GDP-mannose pyrophosphorylase, on chromosome 3p21.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy that usually has a childhood onset (but can range from the first to third decade of life) of severe progressive proximal weakness, eventually involving the distal muscles. Some patients may remain ambulatory but most are wheelchair dependant 20 years after onset. Caused by homozygous mutation in the titin gene (TTN).	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy with characteristics of adolescent or early adulthood-onset of progressive proximal muscle weakness and mild facial muscle weakness, with patients becoming wheelchair bound in their fourth to fifth decade of life. Mild, bilateral winged scapula, incomplete right bundle branch block and a sinus rhythm with very rare ventricular extrasystoles have also been reported. There is evidence this may be caused by homozygous mutation in the DES gene on chromosome 2q35.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy with characteristics of an infantile onset of hypotonia, axial and proximal lower limb weakness (with severe weakness noted after febrile illnesses), cardiomyopathy and normal or reduced intelligence. Hypertrophy of calves, thighs, and triceps have also been reported in some cases.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy with characteristics of childhood-onset progressive proximal muscle weakness (leading to reduced ambulation) with myalgia and fatigue, in addition to infantile hyperkinetic movements, truncal ataxia, and intellectual disability. Additional manifestations include scoliosis, hip dysplasia, and less commonly ocular features (e.g. myopia, cataract) and seizures. There is evidence that this disease is caused by homozygous or compound heterozygous mutation in the TRAPPC11 gene on chromosome 4q35.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy with characteristics of proximal muscle weakness presenting in early childhood (with occasional falls and difficulties in climbing stairs) and a progressive course resulting in loss of ambulation in early adulthood. Muscle atrophy and multiple contractures have also been reported in rare cases.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy with characteristics of proximal weakness (manifesting as slowness in running) presenting in infancy, along with calf hypertrophy, mild lordosis, scapular winging and normal intelligence or mild intellectual disability.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy with characteristics of slowly-progressive mainly proximal muscle weakness presenting in early childhood (with difficulties walking and climbing stairs) and mild to severe intellectual disability. Additional manifestations reported include microcephaly, mild increase in thigh or calf muscles and contractures of the ankles.	Preferred (foundation metadata concept)
A form of limb-girdle muscular dystrophy with onset in childhood or adolescence of rapidly progressive proximal limb muscle weakness (particularly affecting the neck, hip girdle, and shoulder abductors), hypertrophy in the calves and quadriceps, ankle contractures and myopia. Caused by homozygous mutation in the gene encoding protein O-mannose beta-1,2-N-acetylglucosaminyltransferase (POMGNT1) on chromosome 1p34.	Preferred (foundation metadata concept)
A form of lissencephaly with cerebellar hypoplasia with main features of pronounced microcephaly, intellectual disability, spastic diplegia and moderate to severe cerebellar hypoplasia involving both vermis and hemispheres.	Preferred (foundation metadata concept)
A form of lissencephaly with cerebellar hypoplasia with main features of subtle microcephaly, hypotonia and neurological and cognitive development delay. Hippocampal malformation is a characteristic feature on imaging.	Preferred (foundation metadata concept)
A form of mitochondrial DNA depletion syndrome that displays a broad phenotypic spectrum but most often has characteristics of hypotonia, proximal muscle weakness, facial and bulbar weakness and failure to thrive.	Preferred (foundation metadata concept)
A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.	Preferred (foundation metadata concept)
A form of multiple epiphyseal dysplasia manifesting as normal or mild short stature, pain in the hips and/or knees, progressive deformity of extremities and early onset osteoarthrosis. Specific features include a more pronounced involvement of hip joints and gait abnormality and a shorter adult height. The disease follows an autosomal dominant mode of transmission.	Preferred (foundation metadata concept)
A form of neuroacanthocytosis with clinical characteristics of 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. The disorder is very rare and a few hundred cases are suspected worldwide. About one third of patients present with chorea indistinguishable from that observed in Huntington disease and most patients will develop chorea during the course of the disease. Caused by mutations of the XK gene (Xp21.1) encoding the XK protein, which includes the Kx erythrocyte antigen. Most pathogenic mutations are nonsense mutations or deletions predicting an absent or shortened XK protein lacking the Kell protein-binding site.	Preferred (foundation metadata concept)
A form of non-Langerhans cell histiocytosis with characteristics of cutaneous presentation of solitary or disseminated yellow to orange-brown papular or papulonodular, noncoalescent, asymptomatic skin lesions located predominantly on the head, neck, trunk and extremities (rarely on oral mucosa), in the presence of normal lipid levels. Microscopically, the lesions consist of monomorphous infiltrate of xanthoma macrophages and numerous Touton giant cells, with scant or absent inflammatory infiltrate. It is usually not associated with systemic disease.	Preferred (foundation metadata concept)
A form of non-rhizomelic chondrodysplasia punctata, a primary bone dysplasia, with characteristics of hypoplasia of the distal phalanges of the fingers, nasal hypoplasia, epiphyseal stippling appearing in the first year of life, as well as mild and non-rhizomelic shortness of the long bones. Stippled epiphyses are usually seen in the tarsus, knee, and distal phalanges, but may be more generalized, including epiphyses of the long bones, vertebrae, hips, hyoid and tracheal cartilage. At birth, the diagnosis is apparent with facial dysmorphism, quite similar to that of maxillonasal dysplasia. The causative gene is ARSE (Xp22) encoding the arylsulfatase E protein essential for the correct composition of cartilage and bone matrix during development. The pattern of inheritance is X-linked.	Preferred (foundation metadata concept)
A form of non-spastic cerebral palsy with decreased muscle tone, noticeably floppy muscles with poor or no head control.	Preferred (foundation metadata concept)
A form of oculocutaneous albinism with characteristics of skin and hair hypopigmentation, nystagmus and iris transillumination. The prevalence is unknown. It has been discovered in several Faroese families and one patient of Lithuanian origin. Patients have a light skin pigmentation that is reported as lighter than their relatives. Caused by mutation in the C10orf11 gene (10q22.3) encoding a 198 amino acid protein. Currently, little is known about the biological function of this gene in humans and its role in this disease pathogenesis.	Preferred (foundation metadata concept)
A form of paroxysmal dyskinesia with characteristics of painless attacks of dystonia of the extremities triggered by prolonged physical activities. The prevalence is unknown but 20 sporadic cases and 9 families have been described to date. The attacks last between 5 minutes and 2 hours and are typically restricted to the exercised limbs. The dystonic movements are usually bilateral and are aggravated by cold, psychological stress, fatigue and lack of sleep. The pathophysiology is still unknown but some familial cases were found to be associated with mutations in the SLC2A1 gene (1p34.2). Sporadic and familial cases with autosomal dominant mode of inheritance have been reported.	Preferred (foundation metadata concept)
A form of peeling skin syndrome that presents with a generalized distribution. It comprises two sub-types: the non-inflammatory (PSS type A) and the inflammatory (PSS type B) forms.	Preferred (foundation metadata concept)
A form of potassium-aggravated myotonia which is cold insensitive, dramatically fluctuating and profoundly worsened by potassium ingestion. Fluctuating myotonia develops during childhood or adolescence and involves the extraocular, bulbar and limb muscles. Myotonia fluctuans is a sodium muscle channelopathy due to missense mutations of the SCN4A gene encoding the alpha subunit of the skeletal muscle voltage-gated sodium channel Nav1.4. Transmission is autosomal dominant.	Preferred (foundation metadata concept)
A form of potassium-aggravated myotonia which shows dramatic improvement with the use of acetazolamide. Symptoms generally manifest during childhood (before 10 years old), with myotonia of the facial, limbs and/or intercostal muscles that is triggered by potassium ingestion, fasting and mildly by cold exposure and exercise. Muscle stiffness is generally painful. Acetazolamide-responsive myotonia is a sodium muscle channelopathy due to missense mutations of the SCN4A gene, encoding the alpha subunit of the skeletal muscle voltage-gated sodium channel Nav1.4. Transmission is autosomal dominant.	Preferred (foundation metadata concept)
A form of primary hypertrophic osteoarthropathy with characteristics of delayed closure of the cranial sutures and fontanelles, digital clubbing, arthropathy, and periostosis. To date, about 30 cases have been reported. May also be associated with congenital heart disease. It is caused by mutations in the HPGD gene (4q33-q34) and is inherited as an autosomal recessive trait.	Preferred (foundation metadata concept)
A form of primary hypertrophic osteoarthropathy, a rare hereditary disorder with characteristics of digital clubbing, pachydermia and subperiosteal new bone formation associated with pain, polyarthritis, cutis verticis gyrata, seborrhea and hyperhidrosis. Three forms have been described: a complete form with pachydermia and periostitis, an incomplete form with evidence of bone abnormalities but lacking pachydermia, and a forme frusta with prominent pachydermia and minimal-to-absent skeletal changes. The disease typically begins during childhood or adolescence and may stabilize after 5-20 years of progression, or progress constantly. Mutations in the HPGD gene (4q33-q34) have been identified. The gene encodes 15-hydroxyprostaglandin dehydrogenase (15-PGDH), the main enzyme of prostaglandin degradation. Inherited as an autosomal recessive trait.	Preferred (foundation metadata concept)
A form of primary progressive aphasia with characteristics of impaired single-word retrieval and naming and impaired repetition with spared single-word comprehension and object knowledge.	Preferred (foundation metadata concept)
A form of rare hereditary hemochromatosis, a group of diseases characterized by excessive tissue iron deposition of genetic origin. Type 3 hemochromatosis concerns middle aged-adults but also adolescents and young adults. It presents with liver disease, hypogonadism, arthritis, diabetes and skin pigmentation. The disease is caused by mutations of the transferrin receptor 2 gene (TFR2) on chromosome 7. Transmission is autosomal recessive.	Preferred (foundation metadata concept)
A form of severe combined immunodeficiency (SCID) characterized by severe and recurrent infections, associated with diarrhea and failure to thrive. The disease manifests during the first months of life with severe and often life threatening viral, bacterial or fungal and failure to thrive. Chronic diarrhea is a frequent finding. Some patients may have skin rashes and abnormalities of liver function. Immunological findings are lymphopenia with the absence of T and NK cells, hypogammaglobulinemia, and normal or increased B cell count. The disease results from a defect in the IL2RG gene encoding the common gamma chain and transmission is X-linked.	Preferred (foundation metadata concept)
A form of severe combined immunodeficiency with severe and recurrent infections, associated with diarrhea and failure to thrive. The disease is characterized by a lack of circulating T and NK (Natural Killer) cells and normal number of B lymphocytes. Results from a defect in the JAK3 gene encoding an intracellular tyrosine kinase, the Janus activating kinase 3 required for cytokine-mediated signalling. Transmission is autosomal recessive.	Preferred (foundation metadata concept)
A form of sexual abuse where the child is sexually exploited for money, power or status.	Preferred (foundation metadata concept)
A form of skeletal dysplasia with characteristics of severe arthropathy beginning in childhood and hypoplasia/dysplasia of the third, fourth and/or fifth toes. So far, less than 20 patients have been reported, including multiple members of five families from the Czech Republic. Stature and intelligence are normal. Radiographs reveal platyspondyly, irregular vertebral endplates, deformed femoral heads, pelvic dysplasia and narrowed intervertebral spaces. Mutations in the COL2A1 gene have been detected in several of the reported patients. Transmission is autosomal dominant.	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting all four limbs with neck and head paralysis, often accompanied by eating and breathing complications.	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting all four limbs; the term bilateral hemiplegia may also be used when one side has a significantly different tone compared with the other.	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting both sides of the body; the Surveillance of Cerebral Palsy in Europe (SCPE) does not recommend the use of diplegia/quadriplegia terms, and recommends using instead the term bilateral spastic cerebral palsy and subtypes.	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting only one limb	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting the arm and/or leg on one side of the body. An ipsilateral upper and/or lower extremity is affected.	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting the lower half of the body, including both legs.	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting three limbs; this could be both arms and a leg, or both legs and an arm. In some instances, it has referred to one upper and one lower extremity and the face.	Preferred (foundation metadata concept)
A form of spastic cerebral palsy affecting two limbs; usually the legs are affected more than the arms.	Preferred (foundation metadata concept)
A form of spondyloarthritis in which the predominant symptom is back pain, and where radiographic sacroiliitis might or might not be present.	Preferred (foundation metadata concept)
A form of spondylodysplastic Ehlers-Danlos syndrome due to variants in B3GALT6 with characteristics of short stature, variable degrees of muscle hypotonia, joint hypermobility, especially of the hands, bowing of limbs and congenital or early onset, progressive kyphoscoliosis. Additional features include the typical craniofacial gestalt (prominent forehead, sparse hair, mid-face hypoplasia, blue sclerae, proptosis and abnormal dentition), hyperextensible, soft, thin, translucent and doughy skin, delayed motor and/or cognitive development, characteristic radiographic findings (spondyloepimetaphyseal dysplasia, platyspondyly, anterior beak of vertebral body, short ilia, elbow malalignment and generalized osteoporosis), joint contractures and ascending aortic aneurysm. The disorder is due to variants of the B3GALT6 gene (1p36.33), encoding for galactosyltransferase II. Transmission is autosomal recessive.	Preferred (foundation metadata concept)
A form of syndromic craniosynostosis with characteristics of craniosynostosis, mild facial dysmorphism (prominent supraorbital ridges, mild proptosis and maxillary hypoplasia) and calcification of the basal ganglia. The disease is associated with a favorable neurological outcome, normal intelligence and is inherited in an autosomal recessive manner.	Preferred (foundation metadata concept)
A form of syndromic craniosynostosis with characteristics of highly variable craniosynostosis with frontal bossing, turribrachycephaly and cloverleaf skull anomaly. Hypoplasia of the supraorbital ridges, cleft palate, extra teeth and limb anomalies has also been described. Associated problems include headache, poor vision, and seizures. Intelligence is normal.	Preferred (foundation metadata concept)
A form of syndromic craniosynostosis with characteristics of sagittal/dolichocephalic head shape with a relatively normal facial appearance and complete soft tissue syndactyly of hand and foot. Transmission is autosomal dominant with variable expression of the hand findings, and incomplete penetrance of the sagittal craniosynostosis.	Preferred (foundation metadata concept)
A form of syndromic craniosynostosis with characteristics of unilateral coronal craniosynostosis or multiple suture synostosis associated with complete or partial agenesis of the corpus callosum, preaxial polysyndactyly and syndactyly of hands and/or feet, along with anomalies of the skin, eyes and intestine. Developmental delay and variable degrees of intellectual disability may also be observed. Multiple intra-abdominal smooth muscle hamartomas, trichoblastoma of the skin, occipital meningocele and development of desmoplastic medulloblastoma have been reported.	Preferred (foundation metadata concept)

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Reference Sets

Reference set descriptor

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Id	Description	Lang	Type	Status	Case?	Module
900000000001115012	United States of America English language reference set	en	Synonym (core metadata concept)	Active	Entire term case sensitive (core metadata concept)	SNOMED CT model component module (core metadata concept)
900000000001116013	US English	en	Synonym (core metadata concept)	Active	Entire term case sensitive (core metadata concept)	SNOMED CT model component module (core metadata concept)
900000000001117016	United States of America English language reference set (foundation metadata concept)	en	Fully specified name	Active	Entire term case sensitive (core metadata concept)	SNOMED CT model component module (core metadata concept)