Table 3.
Category | Risk of Malignancy (%) | Recommended Management |
---|---|---|
Nondiagnostic or Unsatisfactory | 1–4 | Repeat FNA with U/S guidance |
Benign | 0–3 | Clinical follow-up |
Atypia of Undetermined Significance (AUS) or Follicular Lesion of Undetermined Significance (FLUS) | 5–15 | Repeat FNA* |
Follicular Neoplasm or Suspicious for Follicular Neoplasm | 15–30 | Lobectomy |
Suspicious for Malignancy | 60–75 | Lobectomy +/− frozen section or total thyroidectomy |
Malignant | 97–99 | Total thyroidectomy |
FNA, fine needle aspiration
U/S, ultrasound
Lobectomy can also be considered depending on clinical or sonographic characteristics