Table 2.
Classification of all evaluated thyroid nodules (n = 1257) and hyperfunctional nodules (n = 61) according to ATA 2015, EU-TIRADS, and ACR-TIRADS
| Category | All nodules | Hyperfunctional nodules |
|---|---|---|
| ATA 2015 | ||
| Benign | 4.9% | 0% |
| Very low suspicion | 33.2% | 39.2% |
| Low suspicion | 41.7% | 29.4% |
| Intermediate suspicion | 13.5% | 25.5% |
| High suspicion | 6.7% | 5.9% |
| EU-TIRADS | ||
| Benign (EU-TIRADS 2) | 17.0% | 19.6% |
| Low risk (EU-TIRADS 3) | 60.4% | 49.0% |
| Intermediate risk (EU-TIRADS 4) | 15.1% | 23.5% |
| High risk (EU-TIRADS 5) | 7.4% | 7.8% |
| ACR-TIRADS | ||
| Benign (TR1) | 13.6% | 17.6% |
| Not suspicious (TR2) | 28.1% | 17.6% |
| Mildly suspicious (TR3) | 34.2% | 33.3% |
| Moderately suspicious (TR4) | 20.2% | 27.5% |
| Highly suspicious (TR5) | 3.9% | 3.9% |