Departmental Bulletin Paper 下大静脈後尿管に発生した尿管癌の1例
Ureteral Cancer Developing in Retrocaval Ureter : A Case Report

松村, 善昭  ,  家村, 友輔  ,  福井, 真二  ,  影林, 賴明  ,  三馬, 省二  ,  辻本, 賀洋  ,  岡田, 崇  ,  寒野, 徹

64 ( 1 )  , pp.13 - 16 , 2018-01-31 , 泌尿器科紀要刊行会
Ureteral cancer in the retrocaval ureter is rare. We herein report a patient with this condition laparoscopically treated. A 69-year-old man was referred to us because of right ureteral cancer diagnosed during ureteroscopic surgery for a ureteral calculus. Histological diagnosis of the ureteroscopically biopsied material was non-invasive papillary urothelial carcinoma, low grade (G2). Computed tomography (CT) demonstrated a retrocaval ureter : a double J stent placed during ureteroscopy assisted the diagnosis. The patient underwent retroperitoneoscopic complete nephroureterectomy on the right side. Sufficient separation of the right ureter and the inferior vena cava under retroperitoneoscopic procedures facilitated en bloc extirpation of the kidney and ureter with a minimal lower abdominal incision. The surgical procedures for ureteral cancer in the retrocaval ureter, should be preoperatively considered with care.

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