Table 2.
Clinicopathological Factors of Anorectal Cancers Complicating Crohn’s Disease (CD).
| Macroscopic type | Histology | ||
| 0 | 1 | well | 5 |
| 1 | 2 | well with muc | 1 |
| 2 | 2 | well to por with muc | 3 |
| 3 | 3 | mod to por | 2 |
| 4 | 3 | por with muc | 2 |
| 5 | 7 | muc | 4 |
| neuroendocrine | 1 | ||
| Depth of invasion | |||
| Tis | 1 | Operative method | |
| T3 | 10 | Abdominoperineal resection+ | 11 |
| T4a | 1 | Total pelvic exenteration | 3 |
| T4b | 6 | Unresectable | 4 |
| Stage | Curability | ||
| 0 | 1 | R0 | 12 |
| II | 8 | R1 | 1 |
| IIIa | 2 | R2 | 1 |
| IIIb | 2 | ||
| IV | 5 |
muc: mucinous carcinoma; por: poorly differentiated adenocarcinoma; mod: moderately differentiated adenocarcinoma; +combined resection of adjacent organs