%0 Journal Article
%T Unrecognized Value of Carcinoembryonic Antigen in Recurrent Rectal and Sigmoid Colon Cancer: Case Series
%A Leonid L Yavorkovsky
%A Myron S Kwong
%A Pilar Ivanov
%A Sejal Jhatakia
%J Archive of "The Permanente Journal".
%D 2019
%R 10.7812/TPP/18-022
%X Carcinoembryonic antigen (CEA) surveillance is recommended in patients with colorectal cancer for detection of potentially resectable metastases. In patients with appropriate symptoms, a highly increased CEA concentration (> 5 times the upper limit of normal) is considered strongly suggestive of cancer. Despite the recognized value, the test is neither absolutely sensitive nor specific for recurrent cancer. Generally, a greater diagnostic value has been assigned to elevated CEA levels, most commonly greater than 5 ng/mL. Fluctuations within the established normal CEA range are not customarily analyzed
%K cancer recurrence
%K cancer surveillance
%K carcinoembryonic antigen
%K colorectal cancer
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6550287/