Medical Health Encyclopedia

An advanced imaging technique called a fluorodeoxyglucose positron emission tomography (FDG-PET) scan may be used to detect recurrent or metastasized colorectal cancer in the setting of an elevated CEA. This test is proving to be very sensitive in detecting diseased areas.

Other Tests

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There appears to be no additional benefit for anyone from routine follow-up liver function tests, fecal occult blood tests (FOBT), or computed tomography (CT) scans. There is some debate about whether chest x-rays should be administered annually; they appear to detect recurring cancers but not early enough to be very helpful for the great majority of patients.