LAS VEGAS — Win or lose Saturday, Miss America contestant Allyn Rose will have conveyed a message about breast cancer prevention using her primary tool as a beauty queen: her body.

The 24-year-old Miss DC plans to undergo a double mastectomy after she struts in a bikini and flaunts her roller skating talent. She is removing both breasts as a preventive measure to reduce her chances of developing the disease that killed her mother, grandmother, and great-aunt.