Abstract
To emphasize the potential association between increased levels of carcinoembryonic antigen (CEA) and the presence of medullary thyroid carcinoma (MTC). We present two case reports of this association, including long-term serial measurements of CEA in one patient. CEA is a tumor marker often associated with colon cancer. In recent years, increased CEA in plasma has been reported in patients with other cancers. Diagnoses of MTC in two patients were preceded by increased CEA levels (for 6 years in one patient). Because CEA levels returned to normal after thyroidectomy, MTC may have been the cause of the increases. In patients with increased plasma CEA levels, MTC should be considered in the differential diagnosis even if thyroid palpation is nonrevealing and thyroid function is normal.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
