Gastric adenomas are benign tumors that are treated by fiberendoscopic removal, but large tumors need a surgical approach for resection. Laparoscopic approach fails to localize the exact placement of the lesion due to lack of sensitivity and fiberoptic control is advisable. We present a case of a large gastric adenoma that was resected by laparoscopy assisted with flexible gastric peroperative endoscopy because the lesion could not be palpated. A lateral gastric resection including the adenoma and wide margins was performed with an endostapler under fiberoptic control. Minimally invasive ancillary techniques enhance the efficacy of laparoscopic surgical procedures, especially in situations in which the lack of tactile feeling limits this approach.