Primary small rectal neuroendocrine tumor with pelvic lateral lymph nodes metastasis: A case report and review of literatureLihong Li1,a, Ziyue Chen2,a, Dajian Zhu1,b, Qianbao Lv3,a, Hairong He1,a, Tianpeng Zhang1,a, Jinsong Lai1,aaDegree:M.M., bdegree: M.D.1、Department of Gastrointestinal surgery, Shunde Women and Children’s Hospital of Guangdong Medical University (Maternal & Child Healthcare Hospital of Shunde Foshan)，Foshan 528300, China.2、Postgraduate of Guangdong Medical University, Zhanjiang 524002, China.3、Department of Gynaecology, Shunde Women and Children’s Hospital of Guangdong Medical University (Maternal & Child Healthcare Hospital of Shunde Foshan)，Foshan 528300, China.Correspondence to: Dajian Zhu, Department of Gastrointestinal surgery, Shunde Women and Children’s Hospital of Guangdong Medical University (Maternal & Child Healthcare Hospital of Shunde Foshan)，Foshan 528300, China.Email:zhudajian321@163.comWord count：2596