I have a lung CT and MRI of abdomen and pelvis on 11/21 with results the next day. PRAYING it's just my thyroid causing this rise and not anything else.
If you have an elevated CEA and no cancer is found, ask for a thyroid check. Also, there are a number of papers on this so push your doctor. Mine had no idea but I had taken the article to him.
Elevated concentration of serum carcinoembryonic antigen in hypothyroidism
In this case-report we describe two patients with hypothyroidism and increased carcinoembryonic antigen (CEA) serum concentration. CEA serum concentrations reverted almost completely to the normal range values after the patients were given the hormonal replacement therapy with L-thyroxine. Although the association of hypothyroidism with elevated CEA serum concentrations has been already reported in the literature, hypothyroidism is usually disregarded when a physician is facing with a patient with increased CEA levels. On the contrary, our data suggest that hypothyroidism should be taken into account in the diagnostic work-up of these patients, such as smoking, cholestasis, impaired liver function, chronic inflammatory bronchial and bowel disease.