Table 2.

Clinicopathological features of 31 PTC patients (40 nodules) with minimal ETE and extensive ETE.

	Minimal ETE	Extensive ETE	P value
Age(years)	47.91 ± 11.43	45.34 ± 12.94	.517
Gender			.301
Female	13	12	.247
Male	4	2
Primary tumor size(cm)	1.35 ± 0.68	1.77 ± 0.34	.037
Lymph node metastasis	11	14	.649
Tumor location
Right thyroid	11	5	.161
Left thyroid	11	9
Isthmus	3	1

ETE = extrathyroidal extension, PTC = papillary thyroid carcinoma.