The use of core needle biopsy as first-line in diagnosis of thyroid nodules reduces false negative and inconclusive data reported by fine-needle aspiration

Table 2 Final histologic diagnosis of 34 cancers from fine-needle aspiration (FNA) group

Cytologic class	Cases (n)	Histology
Class 1	1	Follicular variant of papillary carcinoma
Class 2	1	Follicular variant of papillary carcinoma
Class 3	2	Hürthle cell carcinoma (n = 1)
Class 3	2	Follicular variant of papillary carcinoma (n = 1)
Class 4	13	Classic papillary carcinoma (n = 4)
		Follicular variant of papillary carcinoma (n = 7)
		Hürthle cell carcinoma (n = 2)
Class 5	17	Classic papillary carcinoma (n = 13)
		Follicular variant of papillary carcinoma (n = 3)
		Columnar variant of papillary carcinoma (n = 1)

Legend: class 1, inadequate;class 2, benign;class 3, indeterminate;class 4, suspicious for malignancy;class 5, malignant.

ISSN: 1477-7819