Table 3.

Pathological parameters of malign thyroid nodules diagnosed in Bethesda III and IV classes following the resection.

	AUS/FLUS (N=27)	FN (N=13)	Total (N=40)	P value
Tumor type
Follicular carcinoma	2 (7.4%)	2 (15.4%)	4 (10%)	0.65a
Papillary thyroid carcinoma	22 (81.5%)	9 (69.2%)	31 (77.5%)
Others	3 (11.1%)	2 (15.4%)	5 (12.5%)
Tumor size (cm of the largest nodule)	1.97 ± 0.19	1.77 ± 0.20	1.91 ± 0.15	0.78b
Encapsulation	3 (11.1%)	0	3 (75%)	0.54c
Tumor invasion into thyroid capsule	6 (22.2%)	6 (46.2%)	12 (30%)	0.24c
Extrathyroidal extension	2 (7.4%)	1 (7.7%)	3 (75%)	0.97c
Lymphovascular invasion	2 (7.4%)	1 (7.7%)	3 (75%)	0.97c

AUS Atypia of undetermined significance

FLUS Follicular lesion of undetermined significance

FN Follicular neoplasia

^aChi-squared Test for Independence

^bNonparametric Mann-Whitney Test

^cChi-square Test