Table 4 Specificity, Sensitivity, PPV, and NPV for breast FNAB using the IAC Yokohama system with different scenarios
Atypical, considered positive | Suspicious for malignancy, considered positive | Malignant, considered positive | |
|---|---|---|---|
Specificity | 100% | 100% | 100% |
Sensitivity | 87.5% | 81.25% | 68.75% |
PPV | 100% | 100% | 100% |
NPV | 93.5% | 91.18% | 86.49% |
Diagnostic accuracy | 95.56% | 93.62% | 89.58% |