Pedunculated rectal carcinoid removed by endoscopic mucosal resection: a case report

Figure 1 A: Pedunculated polypoid lesion presenting a mush-room appearance in the rectum; B: A round and shallow ero-sion in the center and a marked mucosal bulge at the edge of polyp; C: A non-structural pit pattern in the center with elon-gated pits at the edge revealed in magnifying endoscopy.

Figure 2 An endoscopic ultrasonography demonstrated ho-mogeneous hypoechoic mass.

Figure 3 Gross appearance of excised polyp showing a white-yellowish and solid tumor, measuring 13×10 mm with a pedicle.

Figure 4 Histology of tumor showing small uniform cells ar-ranged in small nests and cords with an anastomosing ribbon-like pattern in the submucosal layer.