| myxomembranous colitis | An affection of the mucous membrane of the colon characterised by colicky pain, constipation or diarrhoea (sometimes alternating), and passage of mucous or slimy pseudomembranous shreds and patches. Synonym: mucocolitis, myxomembranous colitis. (05 Mar 2000) |
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| crohn disease vs ulcerative colitis | <radiology> Crohn disease ulcerative colitis location right side left side ulcers deep shallow contraction no yes ileocaecal valve thickened gaping fistulae yes no eccentricity yes no rate of carcinoma slight increase marked increase megacolon unusual yes (12 Dec 1998) |
| crohn's colitis | Crohn's disease involving only the large intestine (colon). (12 Dec 1998) |
| haemorrhagic colitis | Abdominal cramps and bloody diarrhoea, without fever, attributed to a self-limited infection by a strain of Escherichia coli. (05 Mar 2000) |
| pseudomembranous colitis | <gastroenterology> A form of gastroenteritis which occurs when there is an over-growth of Clostridium difficile bacteria in the intestine. This can occur after long-term treatment with broad spectrum antibiotics. (25 Nov 1998) |
| spastic colitis | See Syndrome, irritable bowel. (12 Dec 1998) |
| ischemic colitis | <radiology> Precipitating factors: volvulus, carcinoma, cardiovascular disease, history of aortoiliac reconstruction (2%) with ligation of IMA, abrupt onset of lower abdominal pain and rectal bleeding, location: splenic flexure (80%) and rectosigmoid (watershed areas), BE: single contrast prefered (lesions may become effaced with double contrast), serrated mucosa; pseudopolyposis; transverse ridging; thumbprinting on mesenteric side; deep ulcers, CT: thickening of wall; irregular lumen (thumbrinting), curvilinear collection of intramural gas, portal and mesenteric venous air, blood clot in superior mesenteric artery / superior mesenteric vein, Angio (similar to inflammatory disease): normal / slightly attenuated arterial supply, mild acceleration of arteriovenous transit time (12 Dec 1998) |
| ulcerative colitis | <pathology> Inflammation of the colon and rectum: cause unclear, although there are often antibodies to colonic epithelium and E. Coli strain 0119 B14. (18 Nov 1997) |
| ulcerative colitis: extracolonic manifestations | <radiology> Iritis, erythema nodosum, pyoderma gangrenosum, pericholangitis, chronic active hepatitis, primary sclerosing cholangitis, fatty liver, spondylitis, peripheral arthritis, coincidental rheumatoid arthritis, thrombotic complications see: ulcerative colitis (12 Dec 1998) |
| uraemic colitis | Colitis characterised by haemorrhages in the mucosa, occurring in renal failure, possibly owing to the irritant effect of ammonia formed by breakdown of increased urea in the intestinal secretions. (05 Mar 2000) |
| glomerulonephritis, membranous | A disease of the glomerulus manifested clinically by proteinuria, and sometimes by other features of the nephrotic syndrome. It is histologically characterised by deposits in the glomerular capillary wall between the epithelial cell and the basement membrane and a thickening of the membrane. Also characteristic are outward projections of the membrane between the epithelial deposits in the form of "spikes". There is some agreement that the deposits are antigen-antibody complexes. (12 Dec 1998) |
| membranous | Having a thin, soft, pliable texture. (09 Oct 1997) |
| membranous ampulla | A nearly spherical enlargement of one end of each of the three saemicircular ducts, anterior, posterior, and lateral, where they connect with the utricle. Each contains a neuroepithelial crista ampullaris. Synonym: ampulla membranacea, membranous ampulla. (05 Mar 2000) |
| membranous cataract | A secondary cataract composed of the remains of the thickened capsule and degenerated lens fibres. (05 Mar 2000) |
| membranous cochlea | Spiral tube in the bony canal of the cochlea, lying on its outer wall between the scala vestibuli and scala tympani. (12 Dec 1998) |