This study is looking to recruit CHOP patients 5-30 years old with suspected/ confirmed bone sarcomas. The study is looking to evaluate a new MRI technique to evaluate bones and any mass in them. The study involved an additional imaging sequence performed at the same day as your clinically indicated MRI studies that allows researchers to better visualize the bones. This sequence takes about 30-60 minutes and may be done each time you have a clinically-indicated MRI (up to 3 times). If you're interested in learning more, please contact the study team.