关键词: 腹腔镜手术, 结直肠癌, 腹膜后淋巴结, 淋巴结转移

Abstract: Key techniques for laparoscopic resection of colorectal cancer with retroperitoneal lymph node dissection                      HAO Li-qiang, GUO Hai-yang, HONG Yong-gang. Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
Corresponding author: HAO Li-qiang, E-mail：hao_liqiang@139.com
Abstract    Retroperitoneal lymph node metastasis is an important prognostic factor in colorectal cancer. Increasing evidence suggests that retroperitoneal lymph node dissection holds the potential to improve the prognosis of some patients and achieve long-term survival. At this stage，there is no consensus on the treatment strategy of colorectal cancer patients with retroperitoneal lymph node metastasis，so patient's distant lymph node metastasis should be comprehensively evaluated and necessary imaging diagnosis should be performed before considering the operation. With the development of laparoscopic technology，laparoscopic retroperitoneal lymph node dissection for colorectal cancer is expected to obtain better results. This also poses a challenge in refining the treatment strategies.

Key words: laparoscopic surgery, colorectal cancer, retroperitoneal lymph node, Lymph node metastasis