Rare large sigmoid hamartomatous polyp in an elderly patient with atypical Peutz-Jeghers syndrome: A case report

Figure 4 Colonoscopy and endoscopic forceps were used to obtain tissue pathological biopsy. A: The appendiceal fossa mucosa was smooth without dysplasia or polyps; B: The ileocecal mucosa was smooth and no ulcer or neoplasm was observed; C-E: A grape-like mass was seen in the sigmoid colon 30 cm to 35 cm from the anal verge; F: No abnormal lesions were found in the rectum; G: Pathological changes of hamartomatous polyps; H: Pathological examination showed mucosal prolapsed changes and ulcer formation in some areas.