Endocrine Abstracts

Background: Routine measurements of serum calcitonin levels are considered an integral part of the diagnostic evaluation of medullary thyroid cancer (MTC). We report a rare case of calcitonin and carcinoembryonic antigen (CEA) negative MTC.Case presentation: A 63-year-old retired plasterer attending a well mans clinic was referred to the endocrinology service with elevated calcium (2.75 mmol/dl). Systemic examination was unremarkable and there was no end...