There are many questions associated with breast cancer testing and their accuracy. Do tumor markers give accurate understanding of what's happening in an person's body? Why do some doctors use the ...

Dear Dr. Roach: Would you please discuss the meaning and significance of blood tests to show the level of cancer markers to identify cancer and track the efficacy of treatments? I am 69 years old ...

Dear Dr. Roach: Please discuss the significance of blood tests to show the level of cancer markers to identify cancer and track the efficacy of treatments. I am 69 and have metastatic breast ...