Preoperative RAS Mutational Analysis Is of Great Value in Predicting Follicular Variant of Papillary Thyroid Carcinoma

Table 2

Clinical and pathological characteristics of the 187 follicular variants of papillary thyroid carcinoma.

Characteristics	Number of patients ( = 187)
Age, years	≤45	108
	>45	79
Gender	Female	160
	Male	27
Multiplicity	Single	142
	Multiple	45
Tumor size (cm)	≤1	120
		41
		21
	>4	5
Capsulation	Absent	77
	Present	110
Extrathyroidal extension	Absent	162
	Present	25
Resection margin	Clear	182
	Involvement	5
Lymph node metastases	Absent	104
	Present	25
	Not evaluated	58
Distant metastases at diagnosis	Absent	185
	Present	2