Endoscopic intermuscular dissection in the management of a rectal neuroendocrine tumor
Suhuan Liao, Bo Li, Longbin Huang, Qiuping Qiu, Guang Yang, Jianzhen Ren, Silin Huang
Abstract
A 49-year-old man was admitted to our hospital for endoscopic resection of a subepithelial lesion located in the lower rectum ([Fig. 1 a]). The lesion was incidentally discovered during routine screening colonoscopy. Endoscopic ultrasound confirmed that the lesion originated from the submucosal layer ([Fig. 1 b]). Positron emission tomography with 2-deoxy-2-[fluorine-18]fluoro-D-glucose/computed tomography + speckle reduction imaging (18F-FDG PET/CT + SRI) suggested that the lesion was a neuroendocrine tumor (NET) with high expression of growth inhibitor receptors, without evidence of lymphatic or organ metastasis ([Fig. 2]). The possibility of endoscopic resection was discussed with the patient, and subsequently, endoscopic intermuscular dissection (EID) was performed ([Video 1]).