My name is Kayee Carlson, I am 13 years old. I was diagnosed with Osteosarcoma on 7/5/12. It all start with a large bump on my calf muscle. My mom, dad, and I thought that it was just a pulled muscle or a knot in my leg so we did what anyone else would do we iced it and we also put heat packs on it. I had it for few weeks and then it went way and came back a few days later the pain was more severe and the bump was larger. So I went in to Cambridge Medical Center and they took an x-ray and it was blurry up by my Fibula. They did another test and thought it was cancer. So then they referred us down to Children's Hospital where they did other testing and did a biospy and confirmed that I had cancer.