Lesion of 45 mm in low rectum (LST-G mixed type) resected by ESD (classic technique) in the course «Current treatment of early colorectal neoplasms» held at the Hospital de Poniente on April 2th and 3th. The case was performed by Dr. Gallego and Prof. Katsumi Yamamoto using Flushknife 1.5 BT, Coagrasper, Orise gel (Boston Scientific), ESG-300 as electrosurgical unit and Fujifilm EC-740 TM as a colonoscope.