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Basal procalcitonin (proCt) and stimulated proCt accuracies in the identification of medullary thyroid cancer (MTC) patients in our series.
| Basal proCt | |||||
|---|---|---|---|---|---|
| ≤0.07 ng/ml | >0.07 ng/ml | ||||
| Non-MTC (N) | 87 | 1 | 88 | Sensitivity (%) | 85.7 |
| MTC (N) | 9 | 54 | 63 | Specificity (%) | 98.9 |
| Total (N) | 96 | 55 | 151 | PPV (%) | 98.2 |
| NPV (%) | 90.6 | ||||
| Stimulated proCt | |||||
| ≤0.19 ng/ml | >0.19 ng/ml | ||||
| Non-MTC (N) | 13 | 0 | 13 | Sensitivity (%) | 90.0 |
| MTC (N) | 2 | 18 | 20 | Specificity (%) | 100.0 |
| Total (N) | 15 | 18 | 33 | PPV (%) | 100.0 |
| NPV (%) | 86.7 | ||||
