Diem Brown of MTV's 'The Challenge' diagnosed with cancer a 3rd time

Diem Brown of MTV's "The Challenge," who twice fought ovarian cancer into remission, has now been diagnosed with colon cancer. "It's been a dark couple of days," Brown, 32, told People magazine, "but the outpouring of support has been tremendous. It's truly what will keep me fighting." While filming a new reality show, Brown, 32, collapsed and underwent emergency operations on Aug. 17 and 20, the first to remove a tumor blocking her colon and the second for surgical complications, People said.