title: [A case of papillary renal cell carcinoma mimicking a hemorrhagic renal cyst].
abstract: A right renal cyst was found in a 69-year-old man with stage IV chronic kidney disease on abdominal ultrasonography performed to investigate a right upper abdominal swelling. Aspiration cytology of the cyst revealed no malignancy, but malignancy could not be ruled out on magnetic resonance imaging because of the cyst's wall thickness and heterogeneous contents. At one-year of follow-up, emergent abdominal surgery was performed due to incidental perforation of ascending colon diverticulitis. At that time, cystic fenestration was performed because the large renal cyst obstructed the operative procedure. Pathological examination showed type-1 papillary renal cell carcinoma, and radical nephrectomy was performed after the patient's general condition improved. Hemodialysis was started after the operation, and there has been no disease recurrence for two years.
authors: The Department of Urology, Tohoku University School of Medicine, Tokoku, Japan.
authors: Taku
authors: T
authors: Yamamuro
authors: Koji
authors: K
authors: Mitsuzuka
authors: Masahiko
authors: M
authors: Sato
authors: Hideaki
authors: H
authors: Izumi
authors: Naoki
authors: N
authors: Kawamorita
authors: Hideo
authors: H
authors: Saito
authors: Yasuhiro
authors: Y
authors: Kaiho
authors: Akihiro
authors: A
authors: Ito
authors: Haruo
authors: H
authors: Nakagawa
authors: Yoichi
authors: Y
authors: Arai
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D006470:Hemorrhage / Q000175:diagnosis*; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000175:diagnosis*; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008297:Male