Case of pediatric traditional serrated adenoma resected via endoscopic submucosal dissection

Figure 1 Findings on colonoscopy. A: A single pine cone-shaped polyp with slightly reddish changes seen on a forward colonoscopic view of the lower rectum; B: Magnified narrow-band imaging shows whitish mucosal adhesions and slightly reddish villi (arrowheads) in the lesion; C: Magnified narrow-band imaging shows areas of abrasion and necrosis on the surface of the lesion but the detail is unclear; D: The lesion is seen to cover half of the circumference of the anal verge on a retroflex view.