Endoscopic views of Case 1. (a) Colonoscopy revealed multiple rectal polyps. (b) Esophagogastroduodenoscopy (EGD) showed whitish polypoid lesions in the esophagus. (c) EGD showed multiple gastric polyps. (d) Capsule endoscopy revealed multiple polypoid lesions similar in color to the surrounding mucosa in the jejunum, with their diameters of 2–5 mm. (e) Capsule endoscopy revealed hemangiomas in the jejunum.