<prompt> In Medullary Carcinoma thyroid Tumor marker is:TSHCalcitoninT3, T4 and TSHAlpha Feto protein  <response>: Ans is b ie calcitonin. Schwartz 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 peptideList of important tumor markets Tumor Site Tumor markersMedullary Ca of Thyroid-CalcitoninPapillary Ca of Thyroid-ThyroglobulinProstate-Prostate specific antigen, Prostate acid phosphataseLiver-AFP, Carcino embryonic antigenOvary-CA 125, Placental alkaline phosphatase, beta-HCGBreast-CEA Carcinoembryonic antigenTesticle-AFPBeta-HCGLDHLung small cell Ca-Neuron specific enolase Creatinine kinase brain isoenzyme CK-BBCarcinoid-5 HIAA 5-hydroxy indole acetic acidNeuroblastoma-Neuron specific enolasePancreas-InsulinStomach-GastrinPituitary-ACTHBone-Alkaline PhosphataseMultiple myeloma-Bence Jones proteins. 