Endoscopic snare papillectomy for a solitary Peutz-Jeghers-type polyp in the duodenum with ingrowth into the common bile duct: Case report

Figure 4 Histopathologic findings. A: View of the surgical specimen, showing that it was 4.8 cm × 1.9 cm × 1.8 cm in diameter with lobular surfaces, which were epithelialized with intestinal type mucosa; B: Histopathologic examination showed features suggesting a hamartoma. For example, the polyp contained irregular hyperplastic crypts with focal cystic dilatation and branching bundles of smooth muscle extending from the muscularis mucosae. The epithelium was hyperplastic.