Table 4.

Percent malignancy of individual Bethesda scores after repeat USFNA, as compared with initial USFNA

p-USFNA	r-USFNA	Number of cases (%)	Malignant final pathology, n (%)
B3	B2	6 (7.4)	0 (0.0)
(n = 81)	B3/B4	61 (75.3)	33 (54.01)
	B5/B6	14 (17.3)	14 (100.0)
B4	B2	0 (0)	0 (NA)
(n = 15)	B3/B4	12 (80)	7 (58.33)
	B5/B6	3 (20)	3 (100.0)

Abbreviations: p-USFNA primary fine-needle aspiration, r-USFNA Repeat fine-needle aspiration, B2 Bethesda score II, B3 Bethesda score III, B4 Bethesda score IV, B5 Bethesda score V, B6 Bethesda score VI