Beverly Hills, 90210 icon Shannen Doherty has confirmed media reports stating she is battling breast cancer. The 44-year-old actress said in an exclusive statement to People magazine Wednesday, "Yes, I have breast cancer, and I am currently undergoing treatment. I am continuing to eat right, exercise and stay very positive about my life. I am thankful to my family, friends and doctors for their support and, of course, my fans who have stood by me." Doherty's other small-screen credits include Little House on the Prairie, Our House and Charmed.