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| A rare congenital limb malformation characterized by duplication of the fifth digit in a hand or foot, with an extra, well-formed, functional digit at the metacarpophalangeal/metatarsophalangeal or carpometacarpal/tarsometatarsal joint. The malformation can be an isolated finding or be associated with a large number of other anomalies. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare congenital limb malformation characterized by duplication of the fifth digit in a hand or foot, the sixth digit being rudimentary, poorly developed, and non-functional, frequently consisting of additional soft tissue on a pedicle. The anomaly can be unilateral or bilateral. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Postaxial polydactyly-anterior pituitary anomalies-facial dysmorphism syndrome is a rare, genetic developmental defect during embryogenesis disorder characterized primarily by congenital hypopituitarism and/or postaxial polydactyly. It can be associated with short stature, delayed bone age, hypogonadotropic hypogonadism, and/or midline facial defects (e.g. hypotelorism, mild midface hypoplasia, flat nasal bridge, and cleft lip and/or palate). Hypoplastic anterior pituitary and ectopic posterior pituitary lobe are frequent findings on MRI examination. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Postaxial tetramelic oligodactyly is a rare, genetic, congenital limb malformation disorder characterized by isolated, postaxial oligodactyly in all four extremities. Patients present a consistent pattern of malformation ranging from complete absence of the 5th metacarpals, metatarsals and phalanges to complete absence of the 5th metacarpals and metatarsals, with some residual distal 5th phalanges. There have been no further descriptions in the literature since 1993. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Posterior amorphous corneal dystrophy (PACD) is a very rare form of stromal corneal dystrophy characterized by irregular amorphous sheet-like opacities in the posterior corneal stroma and in Descemet membrane and mildly impaired vision. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare neurologic disease characterized by impairment of higher visual processing skills and other posterior cortical functions without any evidence of ocular abnormalities, relatively intact memory and language in the early stages, and atrophy of posterior brain regions. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare syndrome characterized by congenital ptosis and posterior fusion of the lumbosacral vertebrae. It has been described in a mother and her two daughters. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Posterior meningocele is a rare neural tube closure defect characterized by the herniation of a cerebrospinal fluid-filled sac, that is lined by dura and arachnoid mater, through a posterior spina bifida and covered by a layer of skin of variable thickness, which may be dysplastic or ulcerated. The spinal cord and nerves are generally not included and function normally, although sometimes a tethered cord may be associated. They are most commonly located in the lumbar or sacral region. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic syndrome with a central nervous system malformation as a major feature, characterized by cortical malformations including posterior predominant lissencephaly and diffuse pachygyria, as well as midline crossing defects, thin corpus callosum, dysplastic hippocampi, narrowing of the brainstem with small pons and midbrain, widening of the medulla, and small cerebellum. Clinically, patients present global developmental delay, severe intellectual disability with poor or absent speech, axial hypotonia, and early-onset seizures, among others. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic neurological disorder characterized by postnatal microcephaly, hypotonia during infancy followed in most cases by progressive spasticity mainly affecting the lower limbs, and spastic diplegia or paraplegia, intellectual disability, delayed or absent speech, and dysarthria. Seizures and mildly dysmorphic features have been described in some patients. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Postorgasmic illness syndrome is a rare urogenital disease characterized by the appearance of flu-like symptoms (fever, extreme fatigue, myalgia, itchy burning eyes, nasal congestion/rhinorrhea), as well as mood changes, irritability and concentration, memory and attention difficulties, within a few minutes to a few hours after ejaculation. Symptoms disappear spontaneously 3-7 days after onset. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, genetic, primary orthostatic disorder characterized by dizziness, palpitations, fatigue, blurred vision and tachycardia following postural change from a supine to an upright position, in the absence of hypotension. A syncope with transient cognitive impairment and dyspnea may also occur. The norepinephrine transporter deficiency leads to abnormal uptake and high plasma concentrations of norepinephrine. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Thomas syndrome is characterized by renal anomalies, cardiac malformations and cleft lip or palate. It has been described in six patients. Transmission was suggested 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 group of multiple congenital anomalies/dysmorphic syndrome characterized by autism spectrum disorder, developmental delay, intellectual disability, hyperphagia/obesity, and short stature (clinical features overlapping with Prader-Willi syndrome). However, it is a clinically and genetically heterogenous group where patients may completely lack or manifests in minority some classical clinical features of Prader-Willi syndrome such as short stature, hypotonia, hypogonadism, hyperphagia and morbid obesity. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Guttmacher syndrome is an extremely rare syndrome characterized by hypoplastic thumbs and halluces, 5th finger clinobrachydactyly, postaxial polydactyly of the hands, short or uniphalangeal 2nd toes with absent nails and hypospadias. |
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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 intellectual disability, growth retardation, unilateral preaxial polydactyly, and colobomatous anomalies (including coloboma of the iris, optic nerve head, choroid, and retina). There have been no further descriptions in the literature since 1987. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, genetic primary immunodeficiency characterized by increased susceptibility to fungal infections, typically manifesting as recurrent, chronic mucocutaneous candidiasis, systemic candidiasis with meningoencephalitis, and deep dermatophytosis with dermatophytes invading skin, hair, nails, lymph nodes, and brain, resulting in erythematosquamous lesions, nodular subcutaneous or ulcerative infiltrations, severe onychomycosis, and lymphadenopathy. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare primary immunodeficiency characterized by a severe, potentially life-threatening course of influenza A infection with acute respiratory distress. Production of type I and III interferons in response to influenza virus is very low, while other immunological abnormalities are absent and no further unusual viral infections occur. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic motor neuron disease characterized by decreased or absent fetal movements, congenital proximal and distal joint contractures (consistent with arthrogryposis multiplex congenita), and multiple congenital fractures of the long bones. Further manifestations are neonatal respiratory distress, severe muscular hypotonia, areflexia, dysphagia, congenital heart defects, and dysmorphic facial features. Muscle biopsy shows increased fiber-size variation and grouping of larger type I fibers. The disease is usually fatal in infancy due to respiratory failure. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare neurologic disease with psychiatric involvement characterized by significantly lower-than-expected body weight due to voluntary reduction of food intake, intense fear of becoming overweight, and a distorted body image, in prepubescent children. Secondary manifestations include growth, developmental, and pubertal delay, decreased bone density, severe metabolic and endocrine dysfunction, cognitive impairment, depression, deterioration of academic or athletic performance, as well as difficulties in familial and peer relations, among others. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare hepatic disease characterized by the overlap of primary biliary cholangitis and/or primary sclerosing cholangitis with autoimmune hepatitis, defined by the presence of at least two of the three recognized biochemical, serological, and histological criteria of each disease. The onset of the overlapping diseases can be simultaneous or sequential, with a variable interval of up to several years. Age of onset, gender predisposition, and clinical phenotype vary between each of the diseases, and the clinical presentation ranges from asymptomatic disease or unspecific symptoms such as fatigue, arthralgia, and pruritus, to established cirrhosis and decompensation, or also acute, fulminant hepatitis and liver failure. Association with extrahepatic autoimmune diseases is common. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Reynolds syndrome (RS) is an autoimmune disorder characterized by the association of primary biliary cirrhosis (PBC) with limited cutaneous systemic sclerosis (lcSSc). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary bone lymphoma is a rare lymphoid hemopathy defined as single or multiple tumors in the bone, not associated with infringement or violation of other extranodal malignant lymph nodes outside the area. It usually presents with bone pain, nerve compression, a palpable mass or fracture, while systemic features (fever, night sweats, fatigue, loss of appetite, weight loss) are not common. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare pituitary tumor characterized by the presence of a pituitary adenoma that has metastasized either within the central nervous system, or to distant sites. The vast majority of pituitary carcinomas are hormonally active, most frequently with ACTH or prolactin production. The most common clinical symptoms are diabetes insipidus, optic nerve dysfunction, anterior pituitary dysfunction, palsy of cranial nerves III, IV, or VI, and headaches, although patients may also be asymptomatic. The tumors behave aggressively, and prognosis is poor. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Carcinosarcoma of the corpus uteri is a rare, malignant, mixed epithelial and mesenchymal tumor of the uterine body composed of high-grade carcinomatous and sarcomatous elements. It may present with vaginal bleeding, abnormal vaginal discharge, abdominal pain and/or pelvic mass, with a polypoid tumor sometimes protruding through the cervical canal. Association with Tamoxifen therapy, long-term unopposed estrogen use and previous pelvic radiotherapy has been reported. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare primary germ cell tumor of central nervous system characterized by a lesion typically in the region of the pineal gland and the suprasellar compartment, composed of cytotrophoblastic elements and multinucleated syncytiotrophoblastic giant cells. Ectatic stromal vascular channels, blood lakes, and extensive hemorrhagic necrosis are the rule. The tumor usually arises in the second decade of life and predominantly in males. Clinical presentation depends on location and size and includes signs of increased intracranial pressure, visual disturbances, and endocrine abnormalities. Prognosis is generally poor. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary ciliary dyskinesia - retinitis pigmentosa is an X-linked ciliary dysfunction of both respiratory epithelium and photoreceptors of the retina leading to ocular disorders (mild night blindness, constriction of the visual field, and scotopic and photopic ERG responses reduced to 30-60%) associated with primary ciliary dyskinesia manifestations (chronic bronchorrhea with bronchiectasis and chronic sinusitis) and sensorineural hearing loss. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary cutaneous aggressive epidermotropic CD8+ T-cell lymphoma is a rare form of primary cutaneous T-cell lymphoma characterized by rapidly progressing, localized or disseminated nodules, tumors or eczematous skin lesions. It has a particularly aggressive clinical course with a high tendency to spread, in advanced stages, to extracutaneous locations (the central nervous system, lung, testes). Lymph nodes are often spared. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary cutaneous gamma/delta-positive T-cell lymphoma is a rare, usually aggressive, subtype of cutaneous T-cell lymphoma characterized by infiltration of the epidermis, dermis or subcutaneous tissue by a clonal population of mature, gamma/delta positive cytotoxic T-cells. Typically it presents with ulcerating plaques, tumors, or subcutaneous nodules on the skin of the extremities, however, frequent involvement of mucosal and extranodal sites (such as the nasal cavity, gastrointestinal tract or lungs) is also observed. Cases associated with panniculitis may present with hemophagocytic syndrome (abrupt onset of fever, rash, cytopenia, hepatosplenomegaly and neurological compromise). Infiltration of lymph nodes, spleen and bone marrow is uncommon and resistance to multilineage chemotherapy is reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare acquired skin disease characterized by benign proliferation of mature plasma cells with a typical triad of cutaneous lesions, polyclonal hypergammaglobulinemia, and superficial lymphadenopathy, without an apparent underlying cause. The skin lesions consist of multiple round-to-oval, red-to-dark-brown macules, papules, and plaques most commonly found on the trunk, but also the face, neck, and axillae. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare intestinal disease characterized by congenital partial or complete lack of the collagen mesh network in the intestinal wall, resulting in hypoperistalsis or aperistalsis. The enteric nervous system is normal or near-normal in the affected areas, although hypo- and dysganglionosis may be found in some proximal segments of the colon and/or small bowel. Patients present with chronic intractable slow transit constipation. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary dystonia, DYT21 type is a subtype of mixed dystonia with a late-onset form of pure torsion dystonia. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare primary torsion dystonia characterized by focal or segmental dystonia with onset either in the cranial-cervical region or in the upper limbs. Age of onset varies between 5 years and adulthood, with a mean age of onset of 16 years. Clinical manifestations are generally mild and slowly progressive. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare isolated dystonia characterized by segmental dystonia that predominantly affects the distal limbs and leads to abnormal posture. This disease has a progressive clinical course and may develop into generalized dystonia but remains mild overall. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic dystonia characterized by focal or segmental isolated dystonia involving the face, neck, upper limbs (commonly writing dystonia), larynx, or trunk, with an onset from childhood to early adulthood. Dystonia may be tremulous, giving rise to head or hand tremor. 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 |
| DYT4 type primary dystonia is characterized by predominantly laryngeal dystonia (manifesting as whispering dysphonia) and cervical dystonia (manifesting as torticollis). |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary essential cutis verticis gyrata is a rare, progressive dermis disorder characterized by thickening of the scalp resulting in redundancy of the skin which gives rise to folds and grooves that give the scalp a cerebriform appearance. Folds cannot be corrected by pressure or traction and typically are symmetric and extend anteroposteriorly from vertex to occiput and/or transversely in occipital region. Additional features may include mild subungual hyperkeratosis and distal onycholysis of the nail plates of the great toes. It is not associated with neurological and ophthalmological changes, nor with secondary causes. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic odontologic disease characterized by failure of eruption of non-ankylosed permanent teeth without evidence of obvious mechanical obstruction. Posterior teeth are preferentially affected (typically with involvement of all teeth distal to the most mesial non-erupted tooth), resulting in a posterior open bite. Non-ankylosed teeth tend to become ankylosed, and orthodontic treatment of affected teeth is generally unsuccessful. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary hepatic neuroendocrine carcinoma (PHNEC) is a rare hepatic tumor that may manifest with abdominal pain or fullness, as well as diarrhea or weight loss. More than 10% of cases are asymptomatic and in rare cases a carcinoid syndrome may be observed. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare hypereosinophilic syndrome characterized by hypereosinophilia produced by clonal eosinophils derived from neoplastic stem cells in the absence of any secondary cause of eosinophilia and persisting for at least six months. The condition is associated with signs of organ infiltration, dysfunction, and damage. Clinical manifestations are highly variable, depending on the organ systems involved, and include dermatologic, pulmonary, cardiac, gastrointestinal, and cerebral manifestations, among others. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare endocrine disorder characterized by primary hypogonadism and partial alopecia. Females present with Mullerian hypoplasia, absent or streak ovaries, hypoplastic internal genitalia, primary amenorrhea, and sparse or absent axillary and pubic hair. Some patients also presented sparse eyebrows, microcephaly, flat occiput, dorsal kyphosis or mild intellectual disability. The only described male presents with germinal cell aplasia. Affected individual all present partial scalp alopecia. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare temporomandibular joint anomaly characterized by progressive, asymmetrical, non-neoplastic overgrowth of a mandibular condyle. It is unilateral in most cases and leads to progressive facial asymmetry, mandibular deviation, articular dysfunction, and dental malocclusion. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare renal tubular disease characterised by hypomagnesaemia due to renal magnesium wasting, recurrent generalised seizures, mild to moderate intellectual disability, speech delay and obesity due to CNNM2 mutations. Most patients also manifest motor skill defects and hyperkinesia. Majority of the affected individuals do not exhibit brain anomalies. |
en |
Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare genetic disorder of magnesium transport characterized by infantile onset of generalized seizures and severe hypomagnesemia due to massive renal magnesium wasting. Seizures persist despite magnesium supplementation and are associated with significant global developmental delay and intellectual disability. Brain MRI may show reduced cerebral volume. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary immunodeficiency syndrome due to p14 deficiency is characterized by short stature, hypopigmentation, coarse facies and frequent bronchopulmonary Streptococcus pneumoniae infections. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, genetic, primary combined T and B cell immunodeficiency characterized by recurrent, severe viral and bacterial infections. Immunologic findings include decreased immunoglobulin levels, decreased numbers of B and NK cells, reduced relative CD19+ B cells in peripheral blood, impaired memory responses to viral infections and defective antigen-specific T-cell proliferation. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare DNA repair defect other than combined T-cell and B-cell immunodeficiencies characterized by intrauterine and postnatal growth retardation resulting in short stature, microcephaly, glucocorticoid deficiency, natural killer cell deficiency, and recurrent viral infections. Patients may also have increased susceptibility to cancer. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare biliary tract disease characterized by stone formation within the intrahepatic bile ducts without any known cause, leading to bile stasis and repeated cholangitic episodes. The condition is rare in the Western world but frequent in eastern Asia. Patients usually present before the age of forty with right upper quadrant pain, jaundice, and/or fever. Stones are typically calcium bilirubinate (pigment) stones, and bacteria are present in the bile in almost all cases. Complications are biliary strictures, liver abscess, liver fibrosis, and secondary biliary cirrhosis. Association with cholangiocarcinoma has also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary intraosseous venous malformation is a rare, genetic vascular anomaly characterized by severe blood vessel expansion (most frequently within the craniofacial bones) with painless bone enlargement (usually of mandible, maxilla and/or orbital, nasal, and frontal bones), typically resulting in facial asymmetry and contour deformation. Midline abnormalities, such as diastasis recti, supraumbilical raphe, and hiatus hernia, are commonly associated. Additional features reported include gingival bleeding, ectopic tooth eruption, exophthalmos, loss of vision, nausea, and vomiting. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary localized cutaneous nodular amyloidosis (PLCNA) is the most rare form of primary cutaneous amyloidosis, a skin disease characterized by the accumulation of amyloid deposits in the dermis, characterized clinically by yellowish waxy crusted nodules and papules on the face, lower extremities, trunk, scalp, and genitalia and histologically by the localized deposition of immunoglobulin-derived amyloid in the papillary dermis and subcutis. PLCNA can be associated with connective tissue disorders such as Sjögren's syndrome and CREST syndrome. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary lymphedema is a lymphatic system malformation characterized by swelling of an extremity that can be associated with other lymphatic effusions, due to an underlying developmental anomaly of the lymphatic system (abnormal lymphangiogenesis) It can be hereditary or not and be congenital or late onset. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary lymphoma of the conjunctiva is an extremely rare clonal lymphoid proliferation of the ocular surface, with an indolent course. Clinically it presents with treatment-resistant conjunctivitis, ptosis, excessive tear production or as a painless, salmon-pink, fleshy patch, with a smooth or multinodular surface, on the bulbar conjunctiva. Histologically it is usually B-cell Non-Hodgkin lymphoma (most often extranodal marginal zone B-cell lymphoma, followed by follicular and diffuse large B-cell lymphoma), with conjunctival T-cell Non-Hodgkin lymphoma being very rare. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare malignant sex cord stromal tumor of ovary occurring typically in young women and characterized by manifestations of androgen excess (hirsutism, hair loss, amenorrhea, or oligomenorrhea), when functional. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Ileal neuroendocrine tumor is a rare, primary, malignant, epithelial neoplasm of the small intestine arising from enterochromaffin cells in the ileum (usually the terminal ileum). Clinical behavior depends on the histologic grade, but initially it is generally characterized by vague abdominal symptoms (cramping, bloating, diarrhea) with insidious onset, although sometimes it could present with signs of bowel obstruction/perforation or gastrointestinal bleeding. Diagnosis in advanced stages with regional or distant spread is common, but signs of carcinoid syndrome (flushing, sweating, diarrhea) are usually not apparent until hepatic metastasis has occurred. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Jejunal neuroendocrine tumor is a rare, primary, malignant, epithelial neoplasm of the small intestine arising from enterochromaffin cells in the jejunum. Clinical behavior depends on the histologic grade, but initially it is generally characterized by vague abdominal symptoms (cramping, bloating, diarrhea) with insidious onset, although sometimes it could present with signs of bowel obstruction/perforation or gastrointestinal bleeding. Diagnosis in advanced stages with regional or distant spread is common, but signs of carcinoid syndrome (flushing, sweating, diarrhea) are usually not apparent until hepatic metastasis has occurred. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary non-gestational choriocarcinoma of ovary is a rare ovarian germ cell malignant tumour, arising from primordial germ cells, usually presenting with nausea, vomiting, abdominal pain, menstrual irregularities, and characterised by fast growth pattern, metastasis to lung, liver and brain and production of human chorionic gonadotrophin (hCG). It is apparently chemoresistant and has a worse prognosis than gestational choriocarcinoma and hence should be distinguished from the latter by DNA polymorphism. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary oculocerebral lymphoma is a rare, primary, organ-specific, extranodal non-Hodgkin's lymphoma (typically diffuse large B-cell lymphoma), simultaneously affecting the intraocular compartments (retina, vitreous, optic nerve, uvea and others) and the central nervous system (commonly the cerebellum, spinal cord or pia mater). The presenting symptoms vary depending on the localization of the tumor and may include vitreous floaters or blurred vision, raised intracranial pressure (headache, vomiting, papilledema) and/or focal neurological deficits. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare tremor disorder characterized by an isolated high frequency (>12Hz) tremor that occurs when standing, typically in weight-bearing muscles, causing a feeling of unsteadiness or discomfort, which disappears when not standing. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Progressive non-fluent aphasia (PNFA) is a form of frontotemporal dementia, characterized by agrammatism, laborious speech, alexia, and agraphia, frequently accompanied by apraxia of speech (AOS). Language comprehension is relatively preserved. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare neoplastic disease defined as a clonal lymphoid proliferation affecting one or both lungs (parenchyma and/or bronchi) in a patient with no detectable extrapulmonary involvement at diagnosis or during the subsequent 3 months. PPL comprises low grade/indolent B cell PPL forms, the most frequent form represented by the marginal B-cell lymphoma of mucosa associated lymphoid tissue (MALT lymphoma) and other non-MALT low grade lymphomas; and more rarely high-grade B-cell PPL (including diffuse large B cell lymphoma) and lymphomatoid granulomatosis (LYG). |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare head and neck tumor characterized by a malignant epithelial neoplasm most commonly arising in the maxillary sinus or nasal cavity, occurring as a keratinizing, a non-keratinizing, or a spindle cell (sarcomatoid) type. Patients may present with nasal obstruction, epistaxis, rhinorrhea, swelling, or (at more advanced stages) with facial pain and/or paralysis, diplopia, and proptosis. Patients with paranasal sinus tumors present later and at a higher stage than patients with nasal cavity carcinomas. Risk factors are smoking and industrial exposures. High-risk HPV is most frequently associated with the non-keratinizing type. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary tethered cord syndrome is a genetic, non-syndromic congenital malformation of the neurenteric canal, spinal cord and column characterized by progressive neurologic deterioration (pain, sensorimotor deficits, abnormal gait, decreased tone or abnormal reflexes), musculoskeletal changes (foot deformities and asymmetry, muscle atrophy, limb weakness and numbness, gait disturbances, scoliosis) and/or genitourinary manifestations (bladder and bowel dysfunction). Midline cutaneous stigmata in the lumbosacral region, such as tufts of hair, skin appendages, dimples, subcutaneous lipomas, skin discoloration or hemangiomas, are frequently associated. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare inborn error of metabolism characterized by massive accumulation of triglycerides in the myocardium and coronary arteries, while plasma triglyceride levels are normal. Patients present in adulthood with signs and symptoms of coronary artery disease and severe heart failure. Concomitant skeletal myopathy is common. Vacuole formation in polymorphonuclear leukocytes is typically observed. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Primary unilateral adrenal hyperplasia (PUAH) is a surgically-correctable form of primary (hyper) aldosteronism characterized by renin suppression, unilateral aldosterone hypersecretion, and moderate to severe hypertension secondary to hyperplasia of the adrenal gland. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare, autosomal dominant neurological disorder due to truncation mutations of the prion protein gene PRNP (20p13) leading to deposition of prion protein amyloid. Onset is usually in the fourth decade of life and reported clinical manifestations include diarrhea, nausea, autonomic failure (areflexia, weakness), neurogenic bladder and urinary infections. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Proboscis lateralis (PL) is a rare congenital facial abnormality characterized by failed development of the external nose on one side that is replaced by a tubular structure composed of skin and soft tissue usually attached at the inner canthus of the eye and therefore often associated with maldevelopment of the nasal cavity or paranasal sinuses of the affected side. PL is also associated with other craniofacial abnormalities such as orbital anomalies, cleft lip/palate, frontal encephalocele and holoprosencephaly. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| A rare inherited cancer-predisposing syndrome characterized by early-onset hepatocellular carcinoma, genomic instability, and progeroid features, such as short stature, low body weight, muscular atrophy, lipodystrophy, bilateral cataracts, and premature hair graying. Dysmorphic craniofacial features include triangular face, small, deep-set eyes, and micrognathia. Kyphoscoliosis, sloping shoulders, mild pectus excavatum, bilateral contractures of the elbows and fingers, bilateral clinodactyly, and pes planus have also been reported. |
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Attributed to a particular organization or group that contributes content to SNOMED CT. |
Inserm Orphanet |
| Progeroid syndrome, Petty type is a rare premature aging syndrome characterized by pre-and postnatal growth retardation, a congenital premature-aged appearance with distinctive craniofacial dysmorphism (wide calvaria with large open anterior fontanel and wide metopic suture, broad forehead, small face, micrognathia), markedly diminished subcutaneous fat, cutis laxa and wrinkled skin, without delay in psychomotor development. Scant, brittle hair, hypoplastic nails and delayed, abnormal dentition, as well as hypoplastic distal phalanges, umbilical hernia and eye abnormalities (myopia/hyperopia, strabismus), are also commonly associated. |
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| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by early onset of hypertension and multifocal stenotic lesions of various arteries (including cerebral, renal, abdominal, and coronary). Variable additional features include learning difficulties, mild facial dysmorphism, anomalies of the fingers and toes, bone fragility, and congenital heart defects. |
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| A rare genetic disease characterized by severe progressive sensorineural hearing loss and progressive cerebellar signs including gait ataxia, action tremor, dysmetria, dysdiadochokinesis, dysarthria, and nystagmus. Absence of deep tendon reflexes has also been reported. Age of onset is between infancy and adolescence. Brain imaging may show variable cerebellar atrophy in some patients. |
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| Progressive bifocal chorioretinal atrophy (PBCRA) is an early onset chorioretinal dystrophy characterised by large atrophic macular and nasal retinal lesions, nystagmus, myopia, poor vision, and slow disease progression. |
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| A rare leukoencephalopathy characterized by acute episodes of neurological deficit (ataxia, dysarthria, seizures) with irritability and opisthotonus followed by either steady deterioration or alternating periods of rapid progression and prolonged periods of stability. |
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| A rare genetic neurological disorder characterized by postnatal onset of severe global developmental delay, profound mental retardation, progressive microcephaly, progressive spasticity evolving into spastic quadriplegia with joint contractures, generalized seizures, and irritability. Severe choreoathetosis and dysmorphic features are absent. Brain imaging shows progressive cerebellar atrophy followed by cerebral atrophy affecting both white and gray matter, but no pontine involvement. |
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| Stapes fixation (stapediovestibular ankylosis) is a hearing loss condition that appears as a consequence of annular ligament destruction followed by excessive connective tissue production during the healing process. This condition is mainly observed in otosclerosis but is also found in chronic otitis media with tympanosclerosis, and other rare bone diseases such as Paget's disease and osteogenesis imperfecta (Lobstein disease). |
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| PEHO-like syndrome is a rare, genetic neurological disease characterized by progressive encephalopathy, early-onset seizures with a hypsarrhythmic pattern, facial and limb edema, severe hypotonia, early arrest of psychomotor development and craniofacial dysmorphism (evolving microcephaly, narrow forehead, short nose, prominent auricles, open mouth, micrognathia), in the absence of neuro-ophthalmic or neuroradiologic findings. Poor visual responsiveness, growth failure and tapering fingers are also associated. |
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| Ravine syndrome is an extremely rare genetic neurological disorder, reported in a small number of patients in a specific community on Reunion Island (Ravine region), characterized by infantile anorexia with irrepressible and repeated vomiting, acute brainstem dysfunction, severe failure to thrive, and progressive encephalopathy with MRI showing vanishing of medulla oblongata and cerebellar white matter and severe atrophy of pons, along with supra-tentorial periventricular white-matter hyperintensities and basal ganglia anomalies. |
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| A rare genetic syndromic intellectual disability characterised by global developmental delay, moderate to severe intellectual disability, motor and language impairment, behavioural abnormalities (with mood instability, aggression, and self-mutilation), and progressive hand tremor. Facial dysmorphism includes narrow palpebral fissures, large ears, long philtrum, and prominent chin. |
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| Progressive external ophthalmoplegia-myopathy-emaciation syndrome is a rare mitochondrial oxidative phosphorylation disorder due to nuclear DNA anomalies characterized by progressive external ophthalmoplegia without diplopia, cerebellar atrophy, proximal skeletal muscle weakness with generalized muscle wasting, profound emaciation, respiratory failure, spinal deformity and facial muscle weakness (manifesting with ptosis, dysphonia, dysphagia and nasal speech). Intellectual disability, gastrointestinal symptoms (e.g. nausea, abdominal fullness, and loss of appetite), dilated cardiomyopathy and renal colic have also been reported. |
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| Progressive hemifacial atrophy (PHA) is a rare acquired disorder, characterized by unilateral slowly progressive atrophy of the skin and soft tissues of half of the face leading to a sunken appearance. Muscles, cartilage and the underlying bony structures may also be involved. |
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| Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome is a rare, genetic, neuro-ophthalmological syndrome characterized by post-natal, progressive microcephaly and early-onset seizures, associated with delayed global development, bilateral cortical visual impairment and moderate to severe intellectual disability. Additional manifestations include short stature, generalized hypotonia and pulmonary complications, such as recurrent respiratory infections and bronchiectasis. Auditory and metabolic screenings are normal. |
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| A rare, genetic, neurological disorder characterized by childhood to adolescent onset of progressive myoclonus (which becomes very severe and results in major motor impediment) associated with infrequent tonic-clonic seizures, and, occasionally, ataxia. Learning disability prior to seizure onset and mild cognitive decline may be associated. |
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| A rare, genetic, neurological disorder characterized by childhood-onset severe myoclonic and tonic-clonic seizures and early-onset ataxia leading to severe gait disturbances associated with normal to slightly diminished cognition. Scoliosis, diffuse muscle atrophy and subcutaneous fat loss, as well as developmental delay, may be associated. Brain MRI may reveal complete agenesis of the corpus callosum, ventriculomegaly, interhemispheric cysts, and simplified gyration (frontally). |
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| Progressive myoclonic epilepsy with dystonia is a rare, genetic epilepsy syndrome characterized by neonatal or early infantile onset of severe, progressive, typically frequent and prolonged myoclonic seizures that are refractory to treatment, associated with localized and/or generalized paroxysmal dystonia (which later becomes persistent). Other features include severe hypotonia, hemiplegia, psychomotor regression (or lack of psychomotor development) and progressive cerebral and cerebellar atrophy, with affected individuals becoming progressively non-reactive to environmental stimuli. |
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| Progressive nodular histiocytosis is a rare, normolipemic, non-Langerhans cell histiocytosis characterized by progressive growth of multiple to disseminated, asymptomatic skin lesions that range in appearance from yellow plaques to coalescence-prone red-brown papules, nodules and pedunculated tumors up to 5 cm in size, located typically on the face, trunk and extremities (and rarely on conjunctiva and mucous membranes). Characteristic microscopic findings include a storiform spindle cell infiltrate in the deep dermis with xanthomatous macrophages and some Touton cells in the upper dermis. It is usually not associated with systemic disease. |
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| Progressive non-infectious anterior vertebral fusion (PAVF) is an early childhood spinal disorder characterized by the gradual onset of thoracic and/or lumbar spine ankylosis often in conjunction with kyphosis with distinctive radiological features. |
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| Progressive osseous heteroplasia (POH) is a rare genetic bone disorder characterized clinically by progressive extraskeletal bone formation presenting in early life with cutaneous ossification, that progressively involves subcutaneous and then subsequently deep connective tissues, including muscle and fascia. POH overlaps with a number of related genetic disorders including Albright hereditary osteodystrophy, pseudohypoparathyroidism, and primary osteoma cutis, that share the common features of superficial heterotopic ossification in association with inactivating mutations of GNAS gene (20q13.2-q13.3), coding for guanine nucleotide-binding proteins. POH can, however, be distinguished clinically by the deep and progressive nature of the heterotopic bone formation. |
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| A rare genetic muscular dystrophy characterized by progressive muscle weakness in a scapulo-humero-peroneal and distal distribution, featuring wrist extensor weakness, finger and foot drop, scapular winging, mild facial weakness, contractures of the Achilles tendon, elbow, and shoulder, and diminished or absent deep tendon reflexes. A predilection for the upper extremities has been reported in some patients. Respiratory muscles are spared until late in the disease course. Age of onset, progression, and severity of the disease vary significantly between individuals. Muscle biopsy shows groups of atrophic type I fibers and increased internal nuclei. |
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| A rare disorder characterized by progressive, late onset, autosomal dominant sensorineural hearing loss, QT interval prolongation, and mild cardiac hypertrophy. |
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| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay and intellectual disability, progressive spondyloepimetaphyseal dysplasia, short stature, short fourth metatarsals, and dysmorphic craniofacial features (including microcephaly, hypertelorism, epicanthal folds, mild ptosis, strabismus, malar hypoplasia, short nose, depressed nasal bridge, full lips, small, low-set ears, and short neck). Craniosynostosis, generalized hypotonia, as well as asymmetry of the cerebral hemispheres and mild thinning of the corpus callosum on brain imaging have also been described. |
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| A rare developmental defect during embryogenesis caused by homozygous mutations in the PCNA gene and characterized by neurodegeneration, postnatal growth retardation, prelingual sensorineural hearing loss, premature aging, ocular and cutaneous telangiectasia, learning difficulties, photophobia, and photosensitivity with evidence of predisposition to sun-induced malignancy. Progressive neurologic deterioration leads to gait disturbances, muscle weakness, speech and swallowing difficulties and progressive cognitive decline. |
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| A rare syndrome described and characterized by prenatal onset of growth deficiency, microcephaly, hypoplastic genitalia, and birth onset of convulsions. |
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| A rare autosomal recessive limb-girdle muscular dystrophy characterized by adult onset of progressive muscle weakness and atrophy in the proximal upper and lower limbs, leading to scapular winging and loss of independent ambulation. Respiratory function may become impaired in the course of the disease. Fatty degeneration of internal regions of thigh muscles sparing external areas has been reported, as well as a reduction of alpha-dystroglycan in muscle biopsies. |
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| A rare autosomal recessive limb-girdle muscular dystrophy characterized by infantile to adolescent onset of a milder form of limb-girdle muscular dystrophy with or without intellectual disability. Patients present variable proximal limb muscular weakness with calf hypertrophy and elevated serum creatine kinase. |
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| A rare genetic disease characterized by patients presenting with a multitude of clinical features of Proteus syndrome without meeting the diagnostic criteria for the disease. |
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| Proton-pump inhibitor-responsive esophageal eosinophilia (PPI-REE) is a rare, gastroenterologic disease characterized by typical clinical, endoscopic and histological features of eosinophilic esophagitis (i.e. symptomatic esophageal dysfunction associated with eosinophil-predominant mucose infiltrate) which completely remits upon proton pump inhibitor therapy. |
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| The proximal 16p11.2 microdeletion syndrome is a chromosomal anomaly characterized by developmental and language delays, mild intellectual disability, social impairments (autism spectrum disorders), mild variable dysmorphism and predisposition to obesity. |
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| Proximal 16p11.2 microduplication syndrome is a rare chromosomal anomaly syndrome resulting from a partial duplication of the short arm of chromosome 16 characterized by developmental delay and intellectual disability of a highly variable degree, autism spectrum, obsessive-compulsive, attention deficit hyperactivity disorder, speech articulation abnormalities, muscular hypotonia, tremor, hyper- or hyporeflexia, seizures, microcephaly, neuroimaging abnormalities, decreased body mass index and schizophrenia or bipolar disorder later on in life. |
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| A rare genetic bone disorder characterized by ankylosis of the proximal interphalangeal joints, carpal and tarsal bone fusion, and conductive hearing loss in some patients. |
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| Proximal myopathy with extrapyramidal signs is a rare, hereditary non-dystrophic myopathy characterized by proximal muscle weakness, delayed motor development, learning difficulties, and progressive extrapyramidal motor signs including chorea, dystonia and tremor. Variable additional features have been reported - ataxia, microcephaly, ophthalmoplegia, ptosis, and optic atrophy. |
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| A rare genetic neuromuscular disease characterized by late onset of mild, progressive, proximal muscle weakness, severe myalgias during and after exercise, and susceptibility to rhabdomyolysis. Intellectual disability is mild or absent. There are no abnormalities of the skin. Muscle biopsy shows focal depletion of mitochondria especially at the center of muscle fibers, surrounded by enlarged mitochondria at the periphery. |
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| A rare myotonic dystrophy of juvenile or adult-onset characterized by mild and fluctuating myotonia, muscle weakness, and rarely cardiac conduction disorders. |
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FHIR