Tampa, Florida -- Follow three-year-old Izzy Dean, and she'll take you on a journey as quick as her attention span: from puppet shows to jam sessions, from the playground to experiences that most toddlers never have to face.
"You never think, 'Oh, my kid could have cancer,'" says her mom, Christine.
But two years ago, Christine noticed Izzy acting tired, turning pale, and bruising easily. Christine took her daughter to the doctor, thinking she might be anemic. In August 2011, Izzy was diagnosed with leukemia.