In Medullary Carcinoma thyroid Tumour marker is?: (A) TSH, (B) Calcitonin, (C) T3, T4 and TSH, (D) Alpha Feto protein
Answer is B. Ans is B ie calcitonin Schwaz Surgery writes ? The presence of amyloid is a diagnostic finding, but immunohistochemistry for calcitonin is more commonly used as a diagnostic tumor marker. These tumors also stain positive for CEA (Carcinoembryonic antigen) and CGRP (Calcitonin gene-related peptide)"