Table 2. Comparison of the Results of Direct Sanger Sequencing and IHC for BRAFV600E in Preoperative Samples.
| BRAFV600E IHC | Sanger sequencing | Total | |
|---|---|---|---|
| Wild-type | BRAFV600E | ||
| Total preoperative samples | |||
| Negative | 12 (75) | 5 (15) | 17 (35) |
| Positive | 4 (25) | 28 (85) | 32 (65) |
| Total | 16 (33) | 33 (67) | 49 (100) |
| FNA specimens | |||
| Negative | 4 (67) | 4 (22) | 8 (33) |
| Positive | 2 (23) | 14 (78) | 16 (67) |
| Total | 6 (25) | 18 (75) | 24 (100) |
| CNB specimens | |||
| Negative | 8 (80) | 1 (7) | 9 (36) |
| Positive | 2 (20) | 14 (93) | 16 (64) |
| Total | 10 (40) | 15 (60) | 25 (100) |
Values are expressed as number (%).
IHC, immunohistochemistry; FNA, fine needle aspiration; CNB, core needle biopsy.