Expert Rev Mol Diagn. 2008;8(5):579-585. Quite a few tumor markers (CEA, CA 19-9, AFP, SCC, CA 72-4.) have already been established in diagnosis and/or surveillance of malignant diseases of the GI ...

Tumor marker blood tests may help inform various aspects of cancer care, including diagnosis, staging, treatment planning, and outlook. However, they’re often not the only diagnostic tests used.

This result suggests a higher sensitivity of serum AFP as a tumor marker when used in patients with HBV, but maybe less so in screening patients with HCV for cancer.