Periarticular malacoplakia.
Malacoplakia is a granulomatous process that occasionally affects the musculoskeletal system. It is thought to be caused by a dysfunction in mononuclear cells and their inability to lyse bacteria effectively. A strong correlation between this entity and immunosuppression has been noted. When a granulomatous mass is present in an immunosuppressed patient, the diagnosis of malacoplakia should be considered.
D000328:Adult; D006801:Humans; D007165:Immunosuppression Therapy / Q000009:adverse effects; D007592:Joint Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology; D016030:Kidney Transplantation; D007719:Knee Joint; D008287:Malacoplakia / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology; D008297:Male; D011859:Radiography