Solitary gastric Peutz-Jeghers type stomach polyp mimicking a malignant gastric tumor

Figure 2 Pathological findings of gastric Peutz-Jeghers type stomach polyp. A: Gross examination of a stomach specimen from the patient showed a polyp-like lesion (4 cm × 3 cm) over the antrum following endoscopic mucosectomy; B: Immunohistochemical stains of smooth muscle actin in the mucosal layer revealed a proliferation of smooth muscle bundles (× 200); C: Submucosal layer of the lesion revealed a proliferation of smooth muscle bundles (× 200); D: Photomicrogram demonstrating the presence of an ectopic pancreas in the submucosa of the jejunum and of pancreatic ducts, acini and islet cells (hematoxylin and eosine staining, original magnification × 200).