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BRAF V600E mutation status
| BRAF V600E mutation | First diagnosis | |
|---|---|---|
| PXA (n = 51) | PXA‐AF (n = 23) | |
| Final status | ||
| Mutant | 30 (73.2%) | 9 (47.4%) |
| Nonmutant | 10 (24.4%) | 10 (52.6%) |
| Indeterminate | 1 (2.4%) | 0 |
| NA | 10 | 4 |
| By immunohistochemistry | ||
| Positive | 30 (73.2%) | 9 (47.4%) |
| Negative | 10 (24.4%) | 6 (31.6%) |
| Indeterminate | 1 (2.4%) | 4 (21.1%) |
| NA | 10 | 4 |
| By molecular genetics | ||
| Mutant | 18 (69.2%) | 6 (46.2%) |
| Nonmutant | 8 (30.8%) | 7 (53.8%) |
| NA | 25 | 10 |
