| DISH | diffuse idiopathic skeletal hyperostosis; disseminated idiopathic skeletal hyperostosis |
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| IF | idiopathic fibroplasia; idiopathic flushing; immersion foot; immunofluorescence; indirect fluorescen... |
| IH | idiopathic hirsutism; idiopathic hypercalciuria; immediate hypersensitivity; incompletely healed; in... |
| IHC | idiopathic hemochromatosis; idiopathic hypercalciuria; immunohistochemistry; inner hair cell; intrah... |
| IHH | idiopathic hypogonadotropic hypogonadism; idiopathic hypothalamic hypogonadism; infectious human hep... |
| diffuse idiopathic skeletal hyperostosis | A form of degenerative arthritis characteristically associated with flowing calcification along the sides of the vertebrae of the spine and commonly with inflammation (tendinitis) and calcification of the tendons at their attachments points to bone. Because areas of the spine and tendons can become inflamed, antiinflammatory medications (NSAIDs), such ibuprofen, can be helpful in both relieving pain and inflammation. Also called Forestier's disease. (12 Dec 1998) |
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| idiopathic | Of the nature of an idiopathy, self originated, of unknown causation. (18 Nov 1997) |
| idiopathic aldosteronism | An adrenocortical disorder caused by excessive secretion of aldosterone and characterised by headaches, nocturia, polyuria, fatigue, hypertension, potassium depletion, hypokalaemic alkalosis, hypervolaemia, and decreased plasma renin activity; may be associated with small benign adrenocortical adenomas. Synonym: Conn's syndrome, idiopathic aldosteronism. (05 Mar 2000) |
| idiopathic bilateral vestibulopathy | Slowly progressive disorder affecting young to middle-aged adults, manifested as gait unsteadiness (especially when visual cues are absent) and oscillopsia, unaccompanied by vertigo and hearing loss. (05 Mar 2000) |
| idiopathic bone cavity | A unilocular cyst containing serous fluid and lined with a thin layer of connective tissue, occurring usually in the shaft of a long bone in a child. Synonym: idiopathic bone cavity, osteocystoma, simple bone cyst, traumatic bone cyst, unicameral bone cyst. (05 Mar 2000) |
| idiopathic bradycardia | A slow pulse for which no cause can be discovered. Synonym: idiopathic bradycardia. (05 Mar 2000) |
| idiopathic cardiomyopathy | Cardiomyopathy of unknown or obscure cause. A disease that affects mainly the heart muscle, sparing other cardiac structures and usually resulting in fibrosis, hypertrophy, or both. Synonym: idiopathic cardiomyopathy. (05 Mar 2000) |
| idiopathic disease | A disease of unknown cause or mechanism. (05 Mar 2000) |
| idiopathic epilepsy | An epilepsy without evident cause; term often used to describe the genetic epilepsies. Synonym: generalised tonic-clonic seizure. (05 Mar 2000) |
| idiopathic fibrous hyperplasia | A condition of cystic bone growth that results from abnormal bone development. May occur with bone lesions, skin pigmentation and endocrine abnormalities. See: McCune-Albright syndrome. Origin: Gr. Plassein = to form (27 Sep 1997) |
| idiopathic fibrous mediastinitis | <radiology> Histoplasmosis most common cause, can cause superior vena cava obstruction (12 Dec 1998) |
| idiopathic fibrous retroperitonitis | <radiology> Ureters tapered or obstructed, most severe at L4-5, ureters deviated medially, Treatment: symptomatic; steroids have ? long-term benefit Differential diagnosis: malignancy, lymphoma (especially Hodgkin's), metastasis from colon and breast, retroperitoneal sarcoma, drugs, methysergide (Sansert), haemorrhage, aortic aneurysm, trauma or surgery, inflammation, Crohn's disease, diverticulitis, pancreatitis, extravasated urine, radiation (12 Dec 1998) |
| idiopathic gout | Acute episodes of crystal-induced synovitis due to abnormality of purine metabolism; lower than normal urinary excretion of urate leading to hyperuricaemia and acute episodes of joint inflammation. Synonym: primary gout. Interval gout, an asymptomatic phase between acute attacks of gout. Latent gout, hyperuricaemia without symptoms of gout. Often used synonymously with interval gout. Synonym: masked gout. (05 Mar 2000) |
| idiopathic hirsutism | Hirsutism of uncertain origin in women, who may additionally exhibit menstrual abnormalities and infertility. (05 Mar 2000) |
| idiopathic hypercalcaemic sclerosis of infants | See: idiopathic hypercalcaemia of infants. (05 Mar 2000) |