title: Malakoplakia. Two unusual cases which presented diagnostic problems.
abstract: Two unusual cases of malakoplakia are presented. Both cases occurred outside the urinary tract (retroperitoneum and anus) and were diagnostic problems due to the paucity of Michaelis-Guttman bodies. One case mimicked a retroperitoneal malignant fibrous histiocytoma and the other a common perianal abcess.
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis; D000368:Aged; D001004:Anus Diseases / Q000175:diagnosis*; D001424:Bacterial Infections / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D003949:Diagnostic Techniques, Surgical; D005402:Fistula / Q000150:complications; D005747:Gastric Fistula / Q000150:complications; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis; D006801:Humans; D007251:Influenza, Human / Q000150:complications; D008287:Malacoplakia / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis; D012871:Skin Diseases / Q000150:complications