Fig. 5From: Resection of rectal cancer resembling submucosal tumor that was preoperatively diagnosed with endoscopic ultrasound-guided biopsy a Histologically, the tumor was composed of moderately differentiated adenocarcinoma. b The carcinoma was mainly located at subserosa and had severely invaded to lymphatic and blood vessels. c Adenocarcinoma was observed in the submucosal layer and the mucosal surface showed no exposure of the cancer componentBack to article page