Immune characterization of thyroid neoplasm's and its variants using immunohistochemical markers: CK-19, Galectin-3 and Hector Battifora mesothelial-1.

Background: Nodular lesions of the thyroid are amongst the common palpable lesions that are encountered by the pathologists in the fine needle aspiration clinics and not only aspiration smears, but even biopsy sections pose significant challenges in their characterization and further classification. Neoplastic lesions of the thyroid have shown a steady rise worldwide and are diagnosed at age younger than most other cancers. Histopathology remains the gold standard in diagnosis and classification of thyroid neoplasms, with variable sensitivity and specificity of immunohistochemical markers, also attributed to variation in the inclusion criteria.