I was diagnosed with colon cancer this morning after a colonoscopy but prior to that did CA10-9 and CEA tests and they came out normal. Does this mean that the chance of this being a localised cancer with no metsastatis is high?
Elevated CEA occurs in the advanced stage of incurable cancer and the values are low in the early, stage of the disease. The CEA has been suggested as having prognostic value for patients with colon cancer with high values seen in advanced stages. It can be used to monitor the progress of disease or response to treatment. CA19-9 is elevated in about 20 to 40 percent of colon cancer. It helps to differentiate benign from malignant pancreatic disease in some cases. This is merely an advice and not substitute for clinical examination. It is suggested to discuss your queries with your treating doctor since he knows your medical history best. I sincerely hope it helps.
Best luck and regards!
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