Anderson then underwent two rounds of chemotherapy before undergoing a double mastectomy and reconstruction on April 9. The cancer is now gone and she's used her position as a Ph.D. student studying microbiology and cancer biology at the University of Minnesota to help promote awareness for breast cancer.
It's a touching story, and as a result, she was named the Twins' winner of the 2012 Honorary Bat Girl Contest, a campaign to recognize baseball fans who have been affected by breast cancer and demonstrated a commitment of "Going to Bat" in the fight against the disease.
Anderson was recognized by the Twins in a special pregame ceremony before their game against the Blue Jays on Sunday at Target Field. She also threw out the honorary first pitch and received tickets to the game in Justin Morneau's suite.
"I'm very excited," Anderson said. "I had no idea I even had the potential to win, so when I got the email and the call that said, 'You get to go throw out the first pitch,' it was kind of overwhelming."
Anderson has more than done her part to promote breast cancer awareness since being diagnosed with the disease last September.
Anderson is part of a support group for young people who are breast cancer survivors and is keeping a public Caring Bridge blog and writing guest entries for the "Women of Strength" cancer survivor Web site.
Anderson also formed a team to raise money in the Tubbs Romp to Stomp out Breast Cancer Snowshoe Event at the University of Minnesota. And she applied to become a consumer reviewer on a federal Breast Cancer Research Review Panel, which awards government funding for breast cancer research to scientists across the country.
Anderson's story serves as an inspiration to many, and she is one of 30 Honorary Bat Girls, one for each MLB club. Each winner was selected by a panel that included MLB Players and celebrities in addition to fan votes cast on HonoraryBatGirl.com.
On Mother's Day on Sunday, hundreds of MLB players used pink bats by Louisville Slugger, the official bat of Major League Baseball, stamped with the MLB breast cancer awareness logo. The Honorary Bat Girl Contest was introduced in 2009 to raise additional awareness and support for the annual Going to Bat Against Breast Cancer initiative celebrated on Mother's Day.
"I think it's fantastic," Anderson said. "It's amazing to promote awareness. When I was going through the whole process, it was scary to think that maybe 20 years ago I might not have survived. But I'm completely recovered and have no disease left and it's all due to funding, fundraising and support and research and getting the word out."