February 14, 2012
Avalanna Routh celebrated Valentine's Day this year with a date for the ages. The six-year-old Dana-Farber Boston Children's Cancer and Blood Disorders Center patient, who has been diagnosed with a rare brain tumor, went on a "dream date" with Justin Bieber, thanks in part to a Facebook campaign to have Routh meet the pop star. As important as the date itself, however, is the attention it has focused on atypical teratoid rhabdoid tumor, or AT/RT.