Rosito Mário A, Damin Daniel C, Lazzaron Anderson R, André Cartell, Schwartsmann Gilberto
Departments of Coloproctological Surgery, Pathology, and Oncology, Hospital de Clínicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Int J Colorectal Dis. 2002 Sep;17(5):359-61. doi: 10.1007/s00384-002-0401-z.
Metastatic spread of a distant tumor to the rectum is extremely rare. To our knowledge, there have been no published reports of hematogenic metastasis from a renal cell carcinoma to the rectum.
A patient with a renal cell carcinoma was initially treated by a radical right nephrectomy.
Nine months after the surgery he started to have multiple episodes of hematochezia. Colonoscopy showed a nodular lesion located in the distal rectum, and biopsy revealed an undifferentiated carcinoma. The patient then underwent abdominoperineal resection of the rectum, and histological examination showed metastatic renal clear cell carcinoma.
This case represents an exceedingly rare condition, which has never been reported before.
远处肿瘤转移至直肠极为罕见。据我们所知，尚无肾细胞癌经血行转移至直肠的报道。
一名肾细胞癌患者最初接受了根治性右肾切除术。
术后9个月，他开始出现多次便血。结肠镜检查显示直肠远端有一个结节性病变，活检显示为未分化癌。随后患者接受了直肠腹会阴切除术，组织学检查显示为转移性肾透明细胞癌。
该病例代表了一种极为罕见的情况，此前从未有过报道。
