title: Bilateral retroperitoneal perirenal cysts.
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000000981:diagnostic imaging*; D002415:Cats; D003560:Cysts / Q000000981:diagnostic imaging / Q000662:veterinary*; D005260:Female; D007674:Kidney Diseases / Q000000981:diagnostic imaging / Q000662:veterinary*; D011859:Radiography; D012187:Retroperitoneal Space