In rectal cancer, the distal clearance margin should be at least: (A) 2 cm, (B) 3cm, (C) 4 cm, (D) 5 cm
Answer is A. Tumor margin for curative resection IN GI malignancies (Stomach, small intestine, colon and proximal rectum), tumor margin for curative excision is 5 cm except Esophagus : 10 cm Distal rectum : 2 cm Ref: Sabiston 20th edition Pgno : 1378