复发性癌转移及其外科治疗结肠有二条淋巴引流途径和二条静脉回流通道。主要的淋巴转移是向头侧端的。在大多数结肠癌病组中约有50%的患者已有淋巴结侵犯。直肠癌的转移方式有直接侵润、淋巴转移、血行转移、腹膜转移及术中种植。 Welch和Donaldson发现,当原发性肿瘤位于乙状结肠和直肠时,身体某一部位作为“唯一的”和“与其他部位同时发生”的转移的复发率分别为:肝脏13%,45%;腹腔7%,23%;盆腔30%,45%;肺4%,32%;骨0%,7%及脑 Recurrent cancer metastasis and its surgical treatment There are two lymphatic drainage pathways and two venous return channels in the colon. The main lymphatic metastasis is to the cephalad side. About 50% of patients in most colon cancer patients have lymph node involvement. The metastasis of rectal cancer includes direct invasion, lymphatic metastasis, hematogenous metastasis, peritoneal metastasis, and intraoperative implantation. Welch and Donaldson found that when the primary tumor is located in the sigmoid colon and the rectum, the recurrence rates of metastases that are “unique” and “concurrent with other sites” in one part of the body are: liver 13%, 45%; abdominal cavity 7 %, 23%; pelvis 30%, 45%; lung 4%, 32%; bone 0%, 7% and brain