Endocrine Abstracts

Serum calcitonin (CT) screening of thyroid nodules is a highly sensitive test for early diagnosis of medullary thyroid carcinoma (MTC) and is used for initial diagnosis and post-surgical follow-up. MTC is neuroendocrine tumor derived from parafollicular C cells which produce calcitonin. It is a rare tumor, accounting for 5-10% of all thyroid carcinomas, with a favorable prognosis if diagnosed early. A 74-year-old patient was referred to our clinic due to elevated basal CT leve...