MRI vs histopathology in identifying rectal cancer with partial submucosal invasion (T1sm2 or less)
| Histo ≤T1sm2 | Histo >T1sm2 | |
|---|---|---|
| (A) Scenario 1 | ||
| MR ≤T1sm2 | True +ve | False +ve |
| MR >T1sm2 | False −ve | True −ve |
| ≤Histo T2 | Histo >T2 | |
| (B) Scenario 2 | ||
| ≤MR T2 (≥1 mm clear to MP) | True +ve | False +ve |
| MR T2 (<1 mm clear to MP+) | False −ve | True −ve |
MP, muscularis propria.