LGALS1 and thyroid gland papillary carcinoma: Galectin-1 immunohistochemical expression shows sensitivity (61.9%), which is lower than the sensitivity of TROP-2 (82.5%); other studies done by Abdou et al., Abu-Seadah et al., and Eid and Abo Safia show that TROP-2 is highly sensitive (71%, 98.1%, 87.78%) in the detection of papillary thyroid carcinoma, respectively.21,24,29