Table 2. Clinicopathological characteristics of tumors according to histologic type.
| Intestinal type | Gastric type | ||||
|---|---|---|---|---|---|
| Tubular type | Tubulovillous type | Foveolar type | Pyloric-gland type | ||
| Number of lesions | 91 (82.7%) | 7 (6.4%) | 3 (2.7%) | 9 (8.2%) | |
| Median tumor size(mm) | 7.5 (1–50) | 19.1 (8–50) | 9.7 (8–12) | 15.3 (11–28) | |
| Location | 1 | 14 (15.4%) | 2 (28.6%) | 3 (100%) | 3 (33.3%) |
| 2 | 62 (68.1%) | 4 (57.1%) | 0 (0.0%) | 5 (55.6%) | |
| 3 | 9 (9.9%) | 1 (14.3%) | 0 (0.0%) | 1 (11.1%) | |
| 4 | 6 (5.5%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | |
| Macroscopic appearance | Protruding | 14 (13.1%) | 6 (85.7%) | 3 (100%) | 8 (88.9%) |
| Flat | 62 (67.4%) | 1 (14.3%) | 0 (0.0%) | 1 (11.1%) | |
| Depressed | 15 (16.9%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | |
| Histological atypia | LGIN | 40 (44.0%) | 4 (57.1%) | 0 (0.0%) | 0 (0.0%) |
| HGIN | 45 (49.5%) | 3 (42.9%) | 3 (100%)* | 8 (88.9%)* | |
| IC | 6 (6.5%) | 0 (0.0%) | 0 (0.0%) | 1 (11.1%)* | |
* p<0.01
LGIN: Low-grade intraepithelial neoplasia, HGIN: High-grade intraepithelial neoplasia, IC: Intramucosal carcinoma