Therapeutic Management of Submucosal Gastric Tumors: A Series of Six Cases with Ectopic Pancreas in the Stomach and Description of a Novel Endoscopic Full-Thickness Resection Technique of the Gastric Wall

Ectopic pancreas is a benign congenital abnormality, defined as pancreatic tissue that lacks anatomic or vascular continuity to the pancreas. An incidence of 0.55%-13% has been described in autopsy studies. Ectopic pancreas is most commonly found in the upper GI-Tract.