Laparoscopic resection and endoscopic submucosal dissection for treating gastric ectopic pancreas

Figure 1 Endoscopic submucosal dissection. A: Ectopic pancreas was located in the gastric antrum; B: Marked incision line; C: The surrounding tissues of the tumor along the marker were cut; D: Complete tumor resection; E: Intraoperative precautions. F: Removal of the lesions.

Figure 2 Laparoscopic resection. A: Laparoscopic view of tumor resection using laparoscopic linear anastomosis; B: Laparoscopic view of wedge resection after incision of the gastric wall to exsanguinate the tumor; C: Suture and reinforcement of the remnant gastric wall; D: Pathological specimen.

Figure 3 Pathological view of a gastric ectopic pancreas. A: Pancreatic tissue (black arrow) and gastric mucosal tissue (white arrow), (magnification, × 40); B: Numerous acini (orange arrow) were observed in pancreatic tissue (magnification, × 100); C: Ducts were observed in the pancreatic tissue (white arrow) (magnification, × 100); D: Islet cells were observed in the pancreatic tissue (orange arrow) (magnification, × 200).

Figure 4 Computed tomography images and endoscopic ultrasound images. A: The arterial phase of enhanced computed tomography showed thickening of the gastric antrum (orange arrow); B: Lesion morphology on endoscopic ultrasound (white arrow).