Giant rectal villous adenoma: Surgical approach with rectal eversion and perianal coloanal anastomosis

摘要

INTRODUCTIONColorectal cancer is an important cause of death. Most cases of colon and rectal cancer arise from a preexisting adenomatous polyp. However, if colorectal polyps are very large or not accessible for endoscopic ablation, or if they cannot be re