Table 3. Comparison of FNAC results and histopathology results in two most recent studies (27,28).

TBSRTC	Total nodules, n (%)	ROM	Implied ROM (9)
I	22 (8.7%)	1/22 (4.5%)	5–10%
II	193 (76.6%)	2/193 (1%)	0–3%
III	5 (2%)	4/5 (80%)	10–30%
IV	8 (3.2%)	3/8 (37.5%)	25–40%
V	12 (4.8%)	12/12 (100%)	50–75%
VI	12 (4.8%)	12/12 (100%)	97–99%
Total	252	34/252 (13.5%)

FNAC, fine-needle aspiration cytology; TBSRTC, the Bethesda system for reporting thyroid cytopathology; ROM, risk of malignancy.