main menu   -   articles   -   prostate   -   stories   -   sexuality   -   resources   -   glossary   -   search     From Phoenix5's Prostate Cancer Glossary radioisotope Definition: (ray-dee-oh-EYE-so-towp) An unstable element that releases radiation as it breaks down. Radioisotopes can be used in imaging tests or as a treatment for cancer, e.g., in brachytherapy. In brachytherapy, the most popular are iodine-125, iridium-192 and palladium-103. See half-life. make another selection #s   A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  WXYZ main menu   -   articles   -   prostate   -   stories   -   sexuality   -   resources   -   glossary   -   search The Glossary Booklet   -   The Personal Edition Definitions are provided for education only and are not medical advice. Created exclusively for Phoenix5. © 2002 Phoenix5.