AUTHOR=Liu Jinguo , Yu Liangliang 

TITLE=Same duodenal neuroendocrine tumors, different endoscopic resection methods: a case report and literature review

JOURNAL=Frontiers in Medicine

VOLUME=11

YEAR=2024

URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2024.1401241

DOI=10.3389/fmed.2024.1401241

ISSN=2296-858X

ABSTRACT=<p>Duodenal neuroendocrine tumors (NETs), comprising 2–3% of all gastrointestinal NETs and 1–3% of all duodenal tumors, are remarkably uncommon. In this report, we described a patient diagnosed with two submucosal tumors in the duodenal bulb. We used two distinct endoscopic resection methods, including endoscopic submucosal dissection (ESD) and submucosal tunneling endoscopic resection (STER), to achieve en bloc resection of the lesions without complications. Pathological evaluation, involving hematoxylin–eosin staining and immunohistochemistry, confirmed the diagnosis of NET. Given the limited operative field and space in the duodenal bulb, STER proved to be a viable endoscopic resection technique.</p>