| pathologic retraction ring | A constriction located at the junction of the thinned lower uterine segment with the thick retracted upper uterine segment, resulting from obstructed labour; this is one of the classic signs of threatened rupture of the uterus. Synonym: Bandl's ring, Baudelocque's uterine circle, Scanzoni's second os. (05 Mar 2000) |
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| pathologic rigidity | Rigidity of the cervix uteri in labour, due to fibrosis, scarring, cancer, or other condition. (05 Mar 2000) |
| pathologic sphincter | A thickening of circular musculature caused by disease. (05 Mar 2000) |
| constriction, pathologic | The condition of an anatomical structure's being constricted beyond normal dimensions. (12 Dec 1998) |
| neovascularization, pathologic | Proliferation of blood vessels in tissue not normally containing them, or proliferation of blood vessels of a different kind than usual in tissue. It includes angiogenesis in tumour growth, diabetic retinopathy, haemangiomas, arthritis, and psoriasis. (12 Dec 1998) |
| decalcification, pathologic | The loss of calcium salts from bones and teeth. Bacteria may be responsible for this occurrence in teeth. Old age may be a factor contributing to calcium loss, as is the presence of diseases such as rheumatoid arthritis. (12 Dec 1998) |
| diagnosis, pathologic | A diagnosis, sometimes made postmortem on the basis of the study of tissue and/or organs. (27 Sep 1997) |
| dilatation, pathologic | The condition of an anatomical structure's being dilated beyond normal dimensions. (12 Dec 1998) |
| androgen resistance syndromes | A class of disorders associated with 5a-steroid reductase deficiency, testicular feminization, and related disorders. Compare: steroid 5a-reductase, Reifenstein's syndrome, infertile male syndrome, testicular feminization syndrome. (05 Mar 2000) |
| aortic arch syndromes | Any of a group of disorders leading to occlusion of the arteries arising from the aortic arch. Such occlusion may be caused by atherosclerosis, arterial embolism, syphilitic or tuberculous arteritis, etc. (12 Dec 1998) |
| malabsorption syndromes | General term for syndromes of malnutrition due to failure of normal intestinal absorption of nutrients. (12 Dec 1998) |
| paraneoplastic syndromes | In patients with neoplastic diseases a wide variety of clinical pictures which are indirect and usually remote effects produced by tumour cell metabolites or other products. (12 Dec 1998) |
| chromosomal instability syndromes | A group of mendelian conditions associated with chromosomal instability and breakage in vitro, they often manifest an increased tendency to certain types of malignancies. See: Bloom's syndrome, fragile X syndrome, xeroderma pigmentosum. (05 Mar 2000) |
| compartment syndromes | Conditions in which increased pressure within a limited space compromises the circulation and function of tissue within that space. Compartmentation involves mainly the leg but also involved are the forearm, arm, thigh, shoulder, and buttock. Some of the causes of increased pressure are trauma, tight dressings, haemorrhage, and exercise. Sequelae include nerve compression, paralysis, and contracture. (12 Dec 1998) |
| myelodysplastic syndromes | Conditions in which the bone marrow shows qualitative and quantitative changes suggestive of a preleukaemic process, but having a chronic course that does not necessarily terminate as acute leukaemia. (12 Dec 1998) |