title: Renal parenchymal malacoplakia.
abstract: Malacoplakia is a rare inflammatory disease which usually involves the bladder and only rarely affects the renal parenchyma. The clinical, radiographic, and pathological findings in 5 cases of renal parenchymal malacoplakia (RPM) are presented and 30 cases from the literature are reviewed. Most patients are middle-aged women with E. coli pyelonephritis. Radiographically, two patterns of involvement are recognized: multifocal and unifocal. The prognosis depends on the pattern and extent of RPM; long-term survival is possible with appropriate therapy.
mesh_terms: D000328:Adult; D000368:Aged; D004927:Escherichia coli Infections; D005260:Female; D006801:Humans; D007668:Kidney / Q000473:pathology; D007674:Kidney Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D008287:Malacoplakia / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology; D008875:Middle Aged; D009395:Nephritis, Interstitial / Q000473:pathology; D011859:Radiography; D012082:Renal Veins; D013927:Thrombosis / Q000150:complications; D014682:Vena Cava, Inferior