Elevated carcinoembryonic antigen (CEA) levels in a patient with no malignancy

M. Shapiro, E. Scapa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Carcinoembryonic antigen rarely exceeds serum levels of 10-12 ng/mL in benign diseases and has never been found above 24 ng/ml. We report a case in which carcinoembryonic antigen serum levels reached the value of 44.9 ng/ml without any overt reason (after 22 months of follow-up). A decline of the carcinoembryonic antigen to normal ranges was noticed after a radiolabled anti-carcinoembryonic antigen monoclonal antibody scan was performed. The reason for this phenomenon is unclear.

Original languageEnglish
Pages (from-to)163-164
Number of pages2
Issue number31
StatePublished - 2000


  • Carcinoembryonic antigen
  • Tumor markers


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