title: [A renal cell carcinoma mimicking a multilocular renal cyst].
abstract: A 38-year old man was admitted to the hospital for an investigation of abnormal ultrasonographic findings of the left kidney. Ultrasonography demonstrated multiple, fluid-filled masses separated by a highly echogenic septa and CT revealed a large cystic mass and a thick, irregular wall in the upper and middle poles. Selective, left renal arteriography showed a hypovascular mass. Thus, a presumptive diagnosis was made of multilocular renal cysts. Taking into accounted the possibility of a renal cell carcinoma. Surgical exploration and a left nephrectomy was performed. Microscopically, a multiloculated renal cell carcinoma thus was diagnosed, A definite, preoperative diagnosis is very difficulty to make in most cases, and surgical exploration is considered to be the only way to achieve an accurate diagnosis. Treatment for a multiloculated cystic renal mass containing multilocular renal cysts is a total or partial nephrectomy.
authors.affiliation: Dept. of Urology, Saitama Med. Center, Saitama Med. School.
authors.forename: Y
authors.initials: Y
authors.lastname: Uchijima
authors.forename: N
authors.initials: N
authors.lastname: Kobayashi
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
mesh_terms: D000328:Adult; D002292:Carcinoma, Renal Cell / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000175:diagnosis*; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D009392:Nephrectomy