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Endoscopic views of the polyps. A: Gastroduodenoscopy revealed a 4 cm long, slender, “worm-like” polyp in the second part of the duodenum; B: Gastroduodenoscopy showed a 2.2 cm long, slender polyp in the duodenum; C: Colonoscopy showed a 1.4 cm long, slender polyp in the descending colon.
