Mo1176 A RETROSPECTIVE ANALYSIS OF THE LONG-TERM OUTCOMES OF PATIENTS WITH STAGE T1B ESOPHAGEAL ADENOCARCINOMA

Endoscopic mucosal resection (EMR) is commonly performed for dysplasia/early adenocarcinoma within the setting of Barrett’s esophagus. Cancers that invade the submucosa (T1b) can be further subdivided into SM1, SM2, and SM3, depending on the depth of invasion into the submucosa. Invasive adenocarcinoma significantly increases the risk of lymph node metastasis, which is of critical importance if endoscopic treatment is the only therapy planned. Accurate prediction of lymph node status is therefore crucial in order to determine the appropriate method (surgery or endoscopic) of treatment for early lesions.