title: Avascular necrosis of the head of the femur in a case of retroperitoneal fibrosis.
mesh_terms: D000368:Aged; D005260:Female; D005271:Femur Head Necrosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D011859:Radiography; D012185:Retroperitoneal Fibrosis / Q000150:complications*