previvor
n.— «Joan Lindner, 63, is a cancer survivor. Her daughter, by contrast, is one of a growing number of young women who call themselves previvors because they have learned early that they are genetically prone to breast cancer, and have the chance to act before it strikes.» —“Cancer Free at Age 33, but Weighing a Mastectomy” by Amy Harmon in Chicago New York Times Sept. 16, 2007. (source: Double-Tongued Dictionary)