A 50-year-old man with a chief complaint of abdominal distension admitted to ourdepartment for further examination. Endoscopic study revealed a hemisphered submucosaltumor 10mm in diameter with a central pit in the descending colon and a similar lesion 6mm indiameter covered with nomal mucosa in the cecum. Intraluminal ultrasonography with a 20MHz micro-scanner revealed a mass in the decending colon having heterogenous hypoechoic pattern with patchy internal hyperechoic and anechoic areas in the 3rd layer of the wall, and the other mass in the cecum showing a homogenous hypoechoic pettern in the 3rd layer of the wall. Based on the findings, endoscopic resection was successfully performed. Histological examination showed that the tumor in the descending colon was glomus tumor in the submucosal layer, and the other in the cecum was neurofibroma in the same layer.