2005
DOI: 10.1081/cnv-58878
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Carcinoembryonic Antigen in the Staging and Follow-up of Patients with Colorectal Cancer

Abstract: CEA is a complex glycoprotein produced by 90% of colorectal cancers and contributes to the malignant characteristics of a tumor. It can be measured in serum quantitatively, and its level in plasma can be useful as a marker of disease. Because of its lack of sensitivity in the early stages of colorectal cancer, CEA measurement is an unsuitable modality for population screening. An elevated preoperative CEA is a poor prognostic sign and correlates with reduced overall survival after surgical resection of colorec… Show more

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Cited by 350 publications
(180 citation statements)
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“…Compared to other available diagnostic modalities, serial CEA determinations appear to be the most sensitive for the detection of early recurrent disease [6][8]. However, the current serum markers used to detect cancer recurrence (CEA, TPS, CA-19.9 and CA-72.4) are not very accurate and, in general, give rise to a considerable number of false negatives and positives [9]–[10]. Therefore additional testing is usually necessary to confirm the recurrence, generating inconveniences for the patients and elevating the healthcare costs, because some of the techniques are expensive and have not been shown to be cost-effective [11].…”
Section: Introductionmentioning
confidence: 99%
“…Compared to other available diagnostic modalities, serial CEA determinations appear to be the most sensitive for the detection of early recurrent disease [6][8]. However, the current serum markers used to detect cancer recurrence (CEA, TPS, CA-19.9 and CA-72.4) are not very accurate and, in general, give rise to a considerable number of false negatives and positives [9]–[10]. Therefore additional testing is usually necessary to confirm the recurrence, generating inconveniences for the patients and elevating the healthcare costs, because some of the techniques are expensive and have not been shown to be cost-effective [11].…”
Section: Introductionmentioning
confidence: 99%
“…Although treatment decisions should be based on radiographically documented response status, this simple and easy to measure serum marker might give timely information about current disease status and, beyond that, trigger early imaging e.g. in the case of suspected progression [30,31,32]. However, about 20-25% of patients do not present with elevated CEA levels at baseline, with the majority remaining normal during the course of their disease.…”
Section: Discussionmentioning
confidence: 99%
“…Patients with high serum levels of CEA had better clinical outcome than the other patients, even when limited to all RAS wild-type patients. CEA is a member of the immunoglobulin gene superfamily, and is overexpressed in about 90% of CRCs [21]. Serum CEA is used as a tumor marker for management of CRC [22].…”
Section: Discussionmentioning
confidence: 99%