Table 2.
Distribution of Myb positivity by immunohistochemistry in 37 adenoid cystic carcinomas (ACC) and other salivary gland tumors.
| # cases | Myb strong positive | Myb weak positive | % Myb positive | KIT positive | % KIT positive | |
|---|---|---|---|---|---|---|
| ACC - MYB/NFIB translocation | 18 | 14 | 0 | 78% | 18 | 100% |
| ACC - Abnormal MYB FISH | 6 | 4 | 0 | 67% | 6 | 100% |
| ACC - Normal MYB FISH | 13 | 6 | 0 | 46% | 13 | 100% |
| myoepithelial carcinoma | 4 | 0 | 2 | 50% | 0 | 0% |
| polymorphous adenocarcinoma | 12 | 0 | 4 | 33% | 8 | 67% |
| myoepithelioma | 5 | 0 | 1 | 20% | 2 | 40% |
| pleomorphic adenoma | 16 | 0 | 1 | 6% | 7 | 44% |
| cellular pleomorphic adenoma | 19 | 0 | 1 | 5% | 14 | 74% |
| mucoepidermoid carcinoma | 23 | 0 | 1 | 4% | 10 | 43% |
| basal cell adenoma | 9 | 0 | 0 | 0% | 8 | 89% |
| oncocytoma | 9 | 0 | 0 | 0% | 8 | 89% |
| adenosquamous carcinoma | 5 | 0 | 0 | 0% | 1 | 20% |
| acinic cell carcinoma | 7 | 0 | 0 | 0% | 6 | 86% |
| salivary duct carcinoma | 3 | 0 | 0 | 0% | 2 | 67% |
| oncocytic hyperplasia | 3 | 0 | 0 | 0% | 3 | 100% |