A biopsy from a mass in the neck region revels the presence of parafollicular cells. Which of the following is the best marker for the follow up of this patient?
Correct Answer: Calcitonin
Description: Medullary Ca Arises from parafollicular cells or 'C' cells Associated with secretion of calcitonin. Associated with amyloid deposition. Standard marker is Calcitonin. In calcitonin negative medullary thyroid Ca - Tumor marker is carcinoembryonic Ag Familial medullary thyroid carcinomas In MEN-2 Associated with germline RET mutations-Constitutive activation of the receptor. RET mutations are also in nonfamilial (sporadic) medullary thyroid cancers.
Category:
Pathology
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