直腸癌を原発とした転移性尿管腫瘍の1例

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左水腎症の精査の為に入院した67歳男で,2年前に直腸癌に対して前方切除,1年前に孤立性肝転移に対して肝右葉切除,が行われていた.順行性腎盂造影で左尿管中部に陰影欠損が認められた.其の際に採取された腎盂尿の細胞診はクラスVであった.左腎尿管摘除が行われた.組織学的には転移性腺癌で,尿管粘膜は無傷であったA 67-year-old man was referred for further examination of left hydronephrosis. He had undergone anterior resection for rectal cancer 2 years previously and also right lobectomy for a solitary hepatic metastasis one year postoperatively. Antegrade pyelography demonstrated a filling defect in middle portion of the left ureter. Cytology of the aspirated urine was class V. Left nephrourete-rectomy was performed. Histologically metastatic adenocarcinoma with intact ureteral mucosa was demonstrated.