| This is the basic anatomy of the anal region. Notice the three read beads, which represent the sphincters. If the rectal cancer lies along a line that touches or cuts through the red beads, the patient will need removal of the anus and a permanent stoma. If there is a margin of 1 cm, sphincter preservation canc be attempted. |
| Low anterior resection specimen at the Institute of Digestive diseases Photo collection of Dr. Ilango |
| Low anterior resection after preoperative radiation. This will ensure that more number of patients will undergo this sphincter preserving operation. |
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