(UroToday.com) The diagnosis of testicular cancer is associated with a long-term cumulative incidence of contralateral testicular cancer of 1.9-3.9% over a 15-20-year time span. While it has been hypothesized that patients who receive platinum chemotherapy as part of the management of their testicular cancer have a lower incidence of contralateral testicular cancer, data to answer this question are lacking. To address this question, Dr. Ragnhild Hellesnes and colleagues utilized the cancer registry of Norway, which includes 5,620 men diagnosed with testicular cancer between 1980 and 2009.