+ CDT ?: First, congratulations on your quitting smoking! did you say your cdt lung cancer test was positive? Not sure of the role of magea4. Ct scan is the best imaging study though it does not show microscopic cells. Although results of nlst study were +, ct screening remains controversial. Consult the physician who ordered these tests but looks like you are doing all you can. Most of all, not smoking.
Answered 1/26/2013
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