Table 3.
Predictive value of cytology
| Definitive diagnosis | Cytology PPV | Cytology NPV |
|---|---|---|
| Malignancy | 85.7% | 78.9% |
| Pleomorphic adenoma | 76.4% | 100.0% |
| Adenoid cystic carcinoma | 100% | 95.8% |
| Acinic cell carcinoma | 50% | 100% |
| Overall cytology accuracy rate | 73.1% | |
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