Table 2.
Tumor Location.
| Tumor location | Endoscopic excision | Surgery after endoscopic excision | Surgery | |||||
|---|---|---|---|---|---|---|---|---|
| Number | Percentage | Number | Percentage | Number | Percentage | |||
| Vermiformis appendix | 0 | 0 | 0 | 0 | 70 | 0.6 | ||
| Cecum | 31 | 3.2 | 37 | 5 | 782 | 7.2 | ||
| Ascending | 130 | 13.2 | 80 | 10.9 | 1,723 | 15.8 | ||
| Transverse | 100 | 10.2 | 51 | 6.9 | 1,030 | 9.5 | ||
| Descending | 60 | 6.1 | 40 | 5.5 | 504 | 4.6 | ||
| Sigmoid | 336 | 34.2 | 276 | 37.6 | 2,619 | 24.1 | ||
| Rectosigmoid | 94 | 9.6 | 84 | 11.4 | 1,409 | 12.9 | ||
| Upper rectum | 87 | 8.9 | 63 | 8.6 | 1,105 | 10.2 | ||
| Lower rectum | 119 | 12.1 | 96 | 13.1 | 1,411 | 13.0 | ||
| Proctos | 0 | 0.0 | 1 | 0.1 | 84 | 0.8 | ||
| Unknown | 26 | 2.6 | 6 | 0.8 | 147 | 1.4 | ||
| Total | 983 | 100 | 734 | 100 | 10,884 | 100.0 | ||