Cancerprophylactic cranial irradiation Share Tweet Radiation therapy to the head to reduce the risk that cancer will spread to the brain.( PROH-fih-LAK-tik KRAY-nee-ul ir-RAY-dee-AY-shun )Source: NCI Dictionary of Cancer TermsSearch the Glossary of Medical Terms Previous: prophylactic Next: prophylactic mastectomy NewsletterSign up for the QuackTrack.org newsletter below! Click to commentLeave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment *Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ QuackTrack on TwitterTweets by QuackTrack_org Trending Posts