title: Retroperitoneal xanthogranuloma.
mesh_terms: D000368:Aged; D005260:Female; D006099:Granuloma / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D011859:Radiography; D012187:Retroperitoneal Space; D014973:Xanthomatosis / Q000000981:diagnostic imaging* / Q000601:surgery