Clinical Study

Better Understanding in the Differentiation of Thyroid Follicular Adenoma, Follicular Carcinoma, and Follicular Variant of Papillary Carcinoma: A Retrospective Study

Table 1

Comparison of mean age and size among the 231 thyroid nodules diagnosed as follicular adenoma, follicular carcinoma, and follicular variant of papillary thyroid carcinoma.

PathologyAge (years)Size (mm)
Mean ± SDMinMax0.042Mean ± SDMinMax<0.001

FA15242.5 ± 12.819.072.029.7 ± 14.56.073.0
FC2547.2 ± 17.715.078.00.230*36.4 ± 20.213.0100.00.126*
FVPTC5446.9 ± 9.927.064.00.101*16.3 ± 14.63.0100.0<0.001*

FA: follicular adenoma.
FC: follicular carcinoma.
FVPTC: follicular variant papillary thyroid carcinoma.
: number of cases.
SD: standard deviation.
*values when compared to follicular adenoma.