. >>> a 4-year-old girl ballottle brain tumor with the help of a very special daughter. >> the dad said to me, will i ever get to walk my daughter at her wedding. >> right now chloe is doing well. find out what the doctors ordered now that makes this story even better. >> that's huge. >> and there's something very wrong with this festive light display. >> oh, no. >> you are kidding me. >> see how some holiday pranksters decided to deck the halls t >>> this is dr. alex levy. he's a childhood cancer specialist at the arnold palmer hospital. he put this video to tell a pretty heart wrenching story. >> on christmas eve i got called because there was a young girl 4 years old who came in to the emergency room the night before with vomiting, headaches, trouble walking. >> he's telling the story of a 4-year-old little girl named chloe. >> when we did some mris of her brain, she was found to have a brain tumor. i'll never forget that the dad said to me, will i ever get to walk my daughter at her wedding. >> this is chloe's dad. they were brave enough to let this story be heard. chloe had to unde