Table 2.
Results of fine needle aspiration cytology of thyroid nodules.
| HT+ |
HT− |
|||||
|---|---|---|---|---|---|---|
| FNAC | Definitive histology |
FNAC | Definitive histology |
|||
| Benign | Malignant | Benign | Malignant | |||
| ND/UNS | 6% | 0% | 13% | 6% | 7% | 5% |
| Benign | 43% | 60% | 20% | 48% | 59% | 12% |
| AUS/FLUS | 20% | 25% | 13% | 18% | 18% | 15% |
| FN/SFN | 11% | 10% | 13% | 13% | 14% | 10% |
| SFM | 11% | 5% | 20% | 7% | 2% | 25% |
| Malignant | 9% | 0% | 21% | 8% | 0% | 33% |
FNAC, fine needle aspiration cytology; ND/UNS, nondiagnostic/unsatisfactory; AUS/FLUS, atypia of undetermined significance/follicular lesion of undetermined significance; FN/SFN, follicular neoplasm/suspected for a follicular neoplasm; SFM, suspected for malignancy; HT+, Hashimoto's thyroiditis present; HT−, Hashimoto's thyroiditis absent.