Brachytherapy: Follow the Bouncing (PSA) Ball?
Prostate specific antigen (PSA) is like an ID tag for prostate cells. Each prostate cell, whether normal or cancerous, carries proteins (antigens) that can be “shed” into the bloodstream when some type of activity stimulates the prostate. Generally, the more constant the activity, the higher the level of PSA as measured by a simple blood keep reading