| GPM | general preventive medicine; giant pigmented melanosome |
|---|---|
| PE | Edinburgh Pharmacopoeia; pancreatic extract; paper electrophoresis; partial epilepsy; pelvic examina... |
| pigm | pigment, pigmented |
| PPCRA | pigmented paravenous chorioretinal atrophy |
| PPM | permanent pacemaker; phosphopentomutase; physician practice management; pigmented pupillary membrane... |
| idiopathic thrombocytopenia purpura | <haematology> A rare autoimmune disorder characterised by an acute shortage of platelets with resultant bruising and spontaneous bleeding. The platelet count becomes exceedingly low and spontaneous bleeding from the gums, gastrointestinal tract and nose can be seen. Physical examination may demonstrate enlargement of the spleen. A typical rash occurs to do microscopic haemorrhage of small blood vessels in the skin. Platelet counts under 10,000 can lead to spontaneous haemorrhage into the brain causing death. Treatment with corticosteroids is generally effective. Surgical removal of the spleen (splenectomy) is reserved for some patients. Anti-platelet antibodies are detectable in some cases. It may present in either an acute or a chronic form. Acronym: ITP (20 Sep 2002) |
|---|---|
| idiopathic thrombocytopenic purpura | <haematology> A rare autoimmune disorder characterised by an acute shortage of platelets with resultant bruising and spontaneous bleeding. The platelet count becomes exceedingly low and spontaneous bleeding from the gums, gastrointestinal tract and nose can be seen. Physical examination may demonstrate enlargement of the spleen. A typical rash occurs to do microscopic haemorrhage of small blood vessels in the skin. Platelet counts under 10,000 can lead to spontaneous haemorrhage into the brain causing death. Treatment with corticosteroids is generally effective. Surgical removal of the spleen (splenectomy) is reserved for some patients. Anti-platelet antibodies are detectable in some cases. It may present in either an acute or a chronic form. Acronym: ITP (20 Sep 2002) |
| dystonia, idiopathic torsion | A form of dystonia known as early-onset torsion dystonia (also called generalised torsion dystonia) begins in childhood around the age of 12. Symptoms typically start in one part of the body, usually in an arm or leg, and eventually spread to the rest of the body within about 5 years. Early-onset torsion dystonia is not fatal, but it can be severely debilitating. (12 Dec 1998) |
| t-lymphocytopenia, idiopathic CD4-positive | Reproducible depletion of CD4+ lymphocytes below 300 per cubic millimeter in the absence of HIV infection or other known causes of immunodeficiency. This is a rare, heterogeneous syndrome and does not appear to be caused by a transmissible agent. (12 Dec 1998) |
| jaundice, chronic idiopathic | A familial chronic form of nonhemolytic jaundice thought to be due to a defect in the excretion of conjugated bilirubin and certain other organic anions (e.g., sulfobromophthalein) by the liver. It is characterised by the presence of a brown, coarsely granular pigment in the hepatic cells, which is pathognomonic of the condition. (12 Dec 1998) |
| Leber's idiopathic stellate neuroretinitis | A unilateral neuroretinitis with perifoveal exudates in Henle's nerve fibre layer producing a macular star and spontaneous regression in a few months. Synonym: Leber's idiopathic stellate neuroretinitis. (05 Mar 2000) |
| Leber's idiopathic stellate retinopathy | An inflammation affecting the optic nerve head and the posterior pole of the retina, with cells in the nearby vitreous, usually producing a macular star. Synonym: papilloretinitis. (05 Mar 2000) |
| alveolar soft part sarcoma | <tumour> A malignant tumour formed of a reticular stroma of connective tissue enclosing aggregates of large round or polygonal cells; occurs in subcutaneous and fibromuscular tissues. (05 Mar 2000) |
| ameloblastic sarcoma | <tumour> A rapidly growing, painful, destructive, radiolucent odontogenic tumour that usually arises through malignant change in the mesenchymal component of a pre-existing ameloblastic fibroma. Synonym: ameloblastic sarcoma. (05 Mar 2000) |
| angiolithic sarcoma | <tumour> A firm cellular neoplasm derived from fibrous tissue of the meninges, choroid plexus, and certain other structures associated with the brain, characterised by the formation of multiple, discrete, concentrically laminated, calcareous bodies (psammoma bodies); most of these neoplasms are histologically benign, but may lead to severe symptoms as a result of compressing the brain. Synonym: angiolithic sarcoma, sand tumour, Virchow's psammoma. (05 Mar 2000) |
| avian leukaemia-sarcoma complex | A term applied to a group of transmissible virus-induced diseases of chickens causing sarcoma, myeloblastosis, erythroblastosis, leukosis, osteopetrosis, and lymphomatosis. These agents are closely related viruses (avian leukosis-sarcoma virus) causing prolferation of immature erythroid, myeloid, or lymphoid cells, a division of the RNA tumour viruses (subfamily Oncovirinae) causing the avian leukosis-sarcoma complex of diseases; the viruses are subgrouped according to antigenic characteristics and growth in defined types of tissue culture cells. Synonym: avian erythroblastosis virus, avian leukosis-sarcoma virus, avian lymphomatosis virus, avian myeloblastosis virus, avian sarcoma virus, fowl erythroblastosis virus, fowl lymphomatosis virus, fowl myeloblastosis virus. (05 Mar 2000) |
| avian leukosis-sarcoma virus | avian leukosis-sarcoma complex |
| avian sarcoma | <tumour> A fibrosarcoma, originally observed in a Plymouth Rock hen, now thought to be an expression of infection by certain viruses of the avian leukosis-sarcoma complex in the family Retroviridae. Synonym: avian sarcoma, Rous tumour. (05 Mar 2000) |
| avian sarcoma virus | avian leukosis-sarcoma complex |
| botryoid sarcoma | <tumour> A polypoid form of embryonal rhabdomyosarcoma which occurs in children, most frequently in the urogenital tract, characterised by the formation of grossly apparent grapelike clusters of neoplastic tissue that consist of rhabdomyoblasts, spindle, and stellate cells in a myxomatous stroma; neoplasms of this type grow relatively rapidly and are highly malignant. (05 Mar 2000) |