TACSTD2 and thyroid gland papillary carcinoma: These data show that membranous staining of TROP-2 is specific for both classic and follicular variants of PTC, while Zargari and Mokhtari (sensitivity of 93% and specificity of 74%) between benign and malignant lesions, and 83.3% of follicular carcinomas, 95.2% of follicular variant of papillary carcinomas, who reveals strong membranous staining for TROP-2.27