| emphysematous cholecystitis | <radiology> Ring of air in RUQ, Differential diagnosis: pneumatosis coli, lipomatosis of gall bladder (rare!), follow plain X-ray with ultrasound, males (3:1), especially diabetics, usually acalculous, high mortality (12 Dec 1998) |
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| acalculous cholecystitis | <radiology> 5-10% of acute cholecystitis aetiology: depressed motility and starvation: trauma, burns, surgery, TPN, anaesthesia, narcotics, decreased blood flow through cystic artery: congestive heart failure, arteriosclerosis, polyarteritis nodosa, systemic lupus erythematosus, diabetes, shock, obstruction of cystic duct by extrinsic inflammation, lymphadenopathy, metastases, infection: Salmonella, cholera, Kawasaki syndrome (12 Dec 1998) |
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| acute cholecystitis | <radiology> 80-95% secondary to cystic duct obstruction by gallstone, 5-6th decade; 75% female ultrasound (sensitivity 85-95%; specificity 64-100%): gall bladder wall thickening (greater than3mm), halo sign = gall bladder wall lucency (in 70%), gall bladder hydrops = AP diameter more than 5cm, sonographic Murphy sign (85%), pericholecystic fluid, hepatobiliary scan (95% accuracy): nonvisualization of gallbladder complications: gangrene, irregular wall (ulcers, intraluminal hemmorhage, necrosis), hyperechoic foci within gall bladder wall (microabscesses in Rokitansky-Aschoff sinuses), perforation (5-10%): most commonly in fundus, empyema: gravity dependent debris (12 Dec 1998) |
| cholecystitis | <pathology, surgery> Acute or chronic inflammation of the gallbladder. See: biliary tract. (15 Jan 1998) |
| chronic cholecystitis | <radiology> most common form of gallbladder inflammation, gallstones, gallbladder wall thickening, small gallbladder hepatobiliary scan: normal gall bladder visualization in most patients, delayed gall bladder visualization; visualization of bowel before gall bladder (sensitivity 45%, specificity 90%), noncontractility/decreased response after CCK (12 Dec 1998) |
| xanthogranulomatous cholecystitis | Chronic cholecystitis with conspicuous nodular infiltration by lipid macrophages; may be associated with biliary obstruction by calculi. (05 Mar 2000) |
| progressive emphysematous necrosis | <microbiology> A severe form of gangrene (tissue necrosis) caused by Clostridium infection. Also referred to as necrotising subcutaneous infection. Results in death of the subcutaneous tissues and muscle layers. See: necrotising fascitis. (27 Sep 1997) |
| emphysematous | <medicine> Pertaining to, or of the nature of, emphysema; swelled; bloated. Origin: Cf. F. Emphysemateux. Source: Websters Dictionary (01 Mar 1998) |
| emphysematous cystitis | Inflammation of the bladder wall caused by gas-forming bacteria, usually secondary to diabetes mellitus. (05 Mar 2000) |
| emphysematous gangrene | <microbiology> A severe form of gangrene (tissue necrosis) caused by Clostridium infection. Also referred to as necrotising subcutaneous infection. Results in death of the subcutaneous tissues and muscle layers. See: necrotising fascitis. (27 Sep 1997) |
| emphysematous gastritis | <radiology> Rare but severe form of widespread phlegmonous gastritis secondary to, mucosal disruption, ingestion of toxic/corrosive substances (most common), alcohol abuse, trauma, gastric infarction, necrotizing enterocolitis, ulcer X-ray: linear small gas bubbles within grossly thickened wall, may be associated with gas in the portal vein prognosis: leads to cicatrical stenosis, 60-80% mortality (12 Dec 1998) |
| emphysematous phlegmon | <microbiology> A severe form of gangrene (tissue necrosis) caused by Clostridium infection. Also referred to as necrotising subcutaneous infection. Results in death of the subcutaneous tissues and muscle layers. See: necrotising fascitis. (27 Sep 1997) |