title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 21-1980.
mesh_terms: D000328:Adult; D003560:Cysts / Q000175:diagnosis / Q000473:pathology*; D003937:Diagnosis, Differential; D005832:Genital Diseases, Male / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D012669:Seminal Vesicles / Q000473:pathology*; D014513:Ureter / Q000002:abnormalities