Table 1.
Clinicopathologic characteristics of 47 patients with 50 large sessile polyps treated by endoscopic piecemeal mucosal resection
| Variable | n |
| Male/female | 23/24 |
| Mean age (range), yr | 60 (27-78) |
| Mean polyp size (range), mm | 30.1 (20-60) |
| Location | |
| Cecum | 2 |
| Ascending | 7 |
| Hepatic flexure | 6 |
| Transverse | 4 |
| Splenic flexure | 1 |
| Descending | 5 |
| Sigmoid | 6 |
| Rectum | 19 |
| Histology | |
| Benign (n = 34) | |
| Tubular adenoma | 20 |
| Tubulovillous adenoma | 7 |
| Villous adenoma | 1 |
| Serrated adenoma | 4 |
| Hyperplastic | 2 |
| Malignant (n = 16) | |
| Tis | 11 |
| T1 | 4 |
| T2 | 1 |