Endoscopic Submucosal Dissection of a Rectal Neuroendocrine Tumor Using Linked Color Imaging Technique

To the Editor： Endoscopic submucosal dissection （ESD） has been widely applied in clinical practice for resecting gastrointestinal mucosal lesions. However, the risk of post-ESD complications is relatively high, and the bleeding is one of the most common complications after ESD, which needs timely detection and treatment. At recent, several new endoscopic imaging techniques have been developed to improve the diagnostic efficiency. Linked color imaging （LCI）, which is a newly developed endoscopic technique, could enhance the color contrast and thus have advantage of identifying bleeding points during ESD. So far, whether the application of LCI in ESD procedure is feasible and sate has not been ever explored. In this report, we described a patient with rectal neuroendocrine tumor who was successfully treated by ESD using LCI.