Medullary Thyroid Carcinoma (MTC) is a rare type of thyroid cancer that originates from the parafollicular cells, also known as C-cells, of the thyroid gland. These cells are responsible for producing the hormone calcitonin, which plays a role in regulating calcium levels in the blood. Unlike other types of thyroid cancers that arise from follicular cells, MTC has distinct biological and clinical characteristics.
