关键词: 直肠癌, 侧方淋巴结清扫, 腹腔镜, 淋巴结, 定位

Abstract: Key tips to ensure localization of the suspicious nodes in patients undergoing laparoscopic lateral lymph node dissection        WANG Zi-qiang，HUANG Hao. Colorectal Cancer Center，West China Hspital，Sichuan University，Chengdu 610041，China
Corresponding author：WANG Zi-qiang，E-mail：wangziqiang@
scu.edu.cn
Abstract    Lateral lymph node dissection has become the treatment of choice for patients with suspicious lateral lymph node metastasis. However，lateral lymph node dissection has been associated with a considerable rate of lateral pelvic recurrence，generally attributed to avoidance of chemoradiotherapy，anatomical complexity of the pelvis and suboptimal surgery. Surgeons dedicated to lateral lymph node dissection should familiarize themself with the pelvic anatomy of each patient and the location of lymph nodes by studying CT images with radiologists or using a three-dimensional printed model of pelvic vessels and plan for the extent of vascular division accordingly. Intraoperatively，a standardized procedure of fascia-oriented lateral lymph node dissection，the proper extent of vascular excision dependent on localization of suspicious lymph nodes，and indocyanine green fluorescence imaging guidance should be implemented to ensure complete excision of all suspicious lateral lymph nodes and minimize the risk of local recurrence.  

Key words: rectal cancer, lateral lymph node dissection, laparoscopy, lymph nodes, location