<prompt> Which of the following is true about medullary cancer thyroid?MET gene PositiveElevated levels of serum calcitoninMEN I syndrome associatedMost common thyroid cancer  <response>: Ans. b Elevated levels of Serum calcitonin seenRef: Schwartz Page 154610th edition Medullary cancer is associated with RET oncogene mutation. MEN-2 Syndromes are associated with MTC Most common thyroid cancer is Papillary cancer 