Ryan O'Neal Diagnosed With Prostate Cancer 04/14/2012 09:58 am ET People Ryan O'Neal, who successfully battled leukemia, has been diagnosed with prostate cancer. Read more on People More: Ryan Oneal FOLLOW CELEBRITY facebook twitter Suggest a correction GET THE NEWSLETTER Enter your email address to get top stories and blog posts emailed to you each day. CONVERSATIONS FOLLOW HUFFPOST HuffPost Celebrity HuffPost Celebrity HuffingtonPost Available on the App Store Android App on Google Play Get it at Blackberry App World HUFFPOST NEWSLETTERS Enter your email address to get top stories and blog posts emailed to you each day. Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements. Learn More.