Fig. 1). Colonoscopy showed an elongated polyp in the transverse colon with a 4-cm long head (• " Fig. 2 a) and an 8-cm long stalk (• " Fig. 2 b). As the reddish head of the lesion was clearly visualized after spraying with indigo carmine (• " Fig. 3), endoscopic polypectomy was carried out. The resected specimen was covered by wrinkled, normal mucosa, and was 4 cm in length (• " Fig. 4). Histopathological examination revealed edematous submucosa covered by normal mucosa. The dense submucosal layer contained dilated vascular and lymphatic elements (• " Fig. 5).
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