biochemical recurrence

Definition of biochemical recurrence

biochemical recurrence

(BY-oh-KEH-mih-kul ree-KER-ents)
A rise in the blood level of PSA (prostate-specific antigen) in prostate cancer patients after treatment with surgery or radiation. Biochemical recurrence may occur in patients who do not have symptoms. It may mean that the cancer has come back. Also called biochemical relapse and PSA failure.

Source: NCI Dictionary of Cancer Terms