Light Therapy Helps Treat Prostate Cancer, Too
 http://www.jurology.com/article/S0022-5347(05)64466-7/abstract

 
NEW YORK (Reuters Health) - Researchers may have added prostate cancer (news - web sites) to the list of cancers that can benefit from photodynamic therapy (PDT), which combines drugs and light to treat cancer and other conditions.
Journal of Urology 2002;168:1427-1432.   See abstract at link above....