xanthogranulomatous pyelonephritismedical dictionary

<radiology> Big kidney, non-functioning (80%), dilated calyces, thin cortex, calculi (often staghorn), adult females, usually unilateral, Gram-negative infection, especially Proteus mirabilis, symptoms: fatigue, low fever, dysuria, flank pain, pathology: granulomata in parenchyma with foam cells, cholesterol slits, fibrosis, atrophic glomeruli, atypical focal form: may resemble focal carcinoma

(12 Dec 1998)