Gastrointestinal stromal tümörü taklit eden sıradışı bir gastrik ektopik pankreas olgusu

Ectopic pancreas is a congenital heterotopic pancreatic tissue typically found in the gastric antrum incidentally. It is easily recognized by its small cratershaped appearance near pylorus on endoscopy. However, it may appear as large submucosal lesion in rare cases. It may not be possible to differentiate ectopic pancreas from stromal tumor and leiyomyoma in all cases even by tomography or endoscopic ultrasound. We report an unusual case of ectopic pancreas which appeared as submucosal lesion on endoscopy and diagnosed by surgical resection.