Table 2. Post-procedure histological grading.
| Histological grading | % (number of patients) |
| Upgraded from B1, B2, and B3 to B5a or B5b | 18% (22 patients) |
| Downgraded from B3 to B2 | 18.8% (23 patients) |
| Unchanged | 63.1% (77 patients) |
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