Table 3. Molecular analysis based on Bethesda category.

Molecular analysis	Bethesda III (AUS/FLUS) (n = 18)		Bethesda IV (FN/SFN) (n = 23)
	Benign (n = 14)	Malignant (n = 4)	Benign (n = 15)	Malignant (n = 8)
BRAFV600E mutation	0 (0.0)	1 (25.0)	0 (0.0)	0 (0.0)
K-RAS mutation in FNA sample	2 (14.3)	0 (0.0)	2 (13.3)	3 (37.5)
K-RAS mutation in surgical specimen	2 (14.3)	0 (0.0)	4 (26.7)	4 (50)

Number in parentheses is percentages