Glossary Term:


ProstaScintTM scan




an imaging study that uses low-level radioactive material to find prostate cancer that has spread beyond the prostate. The radioactive material is attached to an antibody made in a lab to recognize and stick to prostate-specific membrane antigen (PSMA), a substance found only in normal and cancerous prostate cells. This test detects spread of prostate cancer to bone, lymph nodes, and other organs, and can clearly distinguish prostate cancer from other cancers and non-cancer disorders. The ProstaScint scan is most commonly used to look for cancer if the prostate-specific antigen (PSA) level is still high after treatment. See also antibody, lymph node, prostate, prostate-specific antigen, radioisotope.