Case 1 : A 44-year-old man. Endoscopic examination showed a submucosal tumor 30mm in size, in the lesser curvature of the lower body of the stomach. Endoscopic ultrasonography (EUS) showed a hypoechoic lesion and a heterogenous internal echo. We resected the mucosa covering the tumor by the EMR-L method and removed the specimen from the exposed tumor. Pathological study showed heterotopic pancreatic tissue.
Case 2 : A 64-year-old woman who was found to have a submucosal tumor 30 mm in size in the lower body of the stomach. We removed the spcimen from the exposed tumor by EMR-L. Pathological findings showed heterotopic pancreatic tissue.
We could definitely diagnose both hetrotopic pancreatic tissues by biopsy after EMR-L and have followed up the cases. This biopsy technique is useful for defferential diagnosis and to determine how to manage submucosal tumors.
