An pedunculated polyp, discovered incidentally at colonoscopy, is removed by snare polypectomy from the ascending colon. Invasive cancer to the level of the submucosa is identified histologically within the polyp. The lesion is well-differentiated. No lymphatic or vascular invasion is noted. The cauterized margin is negative for neoplasm. Appropriate subsequent management includes which of the following?
A. Repeat endoscopy at 6 months
B. Right hemicolectomy
C. Subtotal colectomy
D. Repeat endoscopy with fulguration of the polypectomy site
Answer:A
An pedunculated polyp, discovered incidentally at colonoscopy, is removed by snare polypectomy from the ascending colon. Invasive cancer to the level of the submucosa is identified histologically within the polyp. The lesion is well-differentiated. No lymphatic or vascular invasion is noted. The cauterized margin is negative for neoplasm. Appropriate subsequent management includes which of the following?
A. Repeat endoscopy at 6 months B. Right hemicolectomy C. Subtotal colectomy D. Repeat endoscopy with fulguration of the polypectomy site