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Normal TPFF appearance on 1-year follow-up scan.
| Second MRI (n = 7) | T2 | T1 | Contrast Enhancement | Thickness (mm) | |
|---|---|---|---|---|---|
| Mucosal layer | Decreased | 4 | - | 3 | 6 |
| Increased | - | - | - | - | |
| Unchanged | 3 | 7 | 4 | 1 | |
| Intermediate layer | Decreased | 6 ** | - | 2 | 1 |
| Increased | - | - | - | 1 | |
| Unchanged | 1 ** | 7 | 5 | 5 | |
| Deep layer | Decreased | 1 | - | 3 | 1 |
| Increased | - | 5 * | 1 | - | |
| Unchanged | 6 | 2 * | 3 | 6 | |
*: p = 0.034; **: p = 0.055.
