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A: Endoscopy showing submucosal lesion in the upper body of the stomach; B: EUS using ultrasound catheter probe demonstrating 1.5 cm subepithelial hypoechoic tumor with continuity to proper muscle layer (arrow-mp); C: The hypoechoic mass shown on EUS was punctured under real-time EUS guidance; D: The FNAB specimen consisted of acinar cells. The histologic diagnosis was ectopic pancreas.
