原发性腹膜后肿瘤常侵及下腔静脉,手术难度和风险集中在如何阻断肿瘤上下的下腔静脉,控制出血[1-4]。笔者施行了2例累及下腔静脉的右侧腹膜后的巨大肿瘤切除手术,发现如不预先结扎切断腔静脉后方曲张的腰静脉,单纯阻断腔静脉不能控制出血。报告如下。 Primary retroperitoneal neoplasms often invade the inferior vena cava, and the difficulty and risk of surgery focus on how to block the inferior vena cava above and below the tumor and control the bleeding [1-4]. I performed two cases involving the right retroperitoneal inferior vena cava resection of the huge tumor and found that if not ligation of the posterior vena cava varicose veins lumbar vein, simply blocking the vena cava can not control the bleeding. The report is as follows.