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Histopathological characteristics of the patients between two groups
| Histopathological characteristics | Group A | Group B |
| Poorly differentiated | 1 | 6 |
| Poorly differentiated + positive margin | 5 | 2 |
| Positive margin | 3 | 1 |
| Lymphovascular invasion | 1 | 2 |
| Poorly differentiated + lymphovascular invasion | 3 | 1 |
Group A: Immediate conventional reoperation after transanal local excision; Group B: Transanal local excision alone.
