Utility of Intraoperative Frozen Sections during Thyroid Surgery

Table 3

Fine needle aspiration (FNA) Bethesda Criteria and frozen section (FS) compared with final pathology.

FNA	Frozen section	Final pathology
Benign	Negative	Negative	19
		Positive	1	FVPC
	Positive	Negative	12
		Positive	2	FVPC ×2
AUS/FLUS	Negative	Negative	19
		Positive	1	Follicular ca
	Positive	Negative	10
		Positive	3	Follicular ca, FVPC, micropapillary ca
FN/SFN	Negative	Negative	14
		Positive	1	Micropapillary ca
	Positive	Negative	6
		Positive	5	Papillary ca, micropapillary ca ×2, FVPC, Hurthle cell ca
SM	Negative	Negative	1
		Positive	0
	Positive	Negative	1
		Positive	0

AUS/FLUS: atypia/follicular lesion of undetermined significance; FN/SFN: follicular neoplasm or suspicious for follicular neoplasm; SM: suspicious for malignancy; FNA: fine needle aspiration biopsy; FVPC: follicular variant of papillary carcinoma; ca: carcinoma.