Which blood tests show cancer?
PSA tests can detect elevated levels of prostate-specific antigen in the blood, which are sometimes a sign of prostate cancer. And complete blood counts — or CBCs — can show high or low levels of certain blood components, which are sometimes a symptom of certain blood cancers.
But are there any simple blood tests available that can prove you have cancer?
Adriana Maria Knopfelmacher Couchonal, M.D., a specialist...

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