title: Retroperitoneal xanthogranuloma.
mesh_terms: D003593:Cytoplasm; D006099:Granuloma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D006644:Histiocytes; D006801:Humans; D006869:Hydronephrosis / Q000150:complications / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012187:Retroperitoneal Space; D014513:Ureter / Q000000981:diagnostic imaging; D001750:Urinary Bladder, Neurogenic / Q000150:complications; D014567:Urography