Abstract
The classification of small round cell sarcomas encompasses a spectrum of diseases ranging from those that are more widely understood, such as Ewing sarcoma and desmoplastic small round cell tumor, to more newly characterized diseases such as capicua (CIC)-rearranged sarcomas, BCOR-altered sarcomas, and sarcomas with EWSR1-non-ETS fusions. This article provides background, unique molecular features, and current and emerging therapies for each round cell sarcoma subtype.