RecruitingRegistry to Collect Health Information About Desmoplastic Small Round Cell TumorThis study is a patient registry of people with Desmoplastic Small Round Cell Tumor (DSRCT). A patient registry is a collection of health information about a group of people, and it is usually focused on a specific diagnosis or disease. The purpose of this registry is to create a database- a collection of information-or better understanding DSRCT. Researchers will use the information from this database to learn more about DSRCT and for current and future research on DSRCT.