The diagnosis is made by means of digestive endoscopy and biopsy. The classical endoscopic finding is represented by subepi- thelial, reddish, ulcerative or non-ulcerative lesions (3) . Barium studies characterize polypoid lesions with smooth contour with sizes ranging from few millimeters to 3 cm. Larger lesions may ulcerate, giving the lesion a "bullseye" or "target"

pattern (4) . Computed tomography detects subepithelial polypoid lesions or irregular thickening of gastric folds, which after intravenous contrast injection show hypervascular behavior, with a more marked enhancement than that of the adjacent mucosa in the arterial phase due to the intense vascularization of the tumor. Additionally, peripancreatic lymph node enlargement may be observed in the porta hepatis, mesenterium and retroperitoneum in