CancersNeoplasmNeoplasm by Special CategoryMalignant NeoplasmSarcomaSoft Tissue SarcomaRetroperitoneal SarcomaRetroperitoneal Undifferentiated Pleomorphic SarcomaSubtypeRetroperitoneal Undifferentiated Pleomorphic SarcomaCI-CAN-00006601Explore in graph →NCItC173808 OverviewStatisticsSurvivalGenomicsVariants & evidenceDrugsTrialsResearchRankingsSources & provenance