Disease Summary help help Associated Targets () Explore Associated Targets list Mondo Description A malignant soft tissue neoplasm that arises from the heart. The majority of cases are angiosarcomas. Mondo Term and Equivalent IDs MONDO:0003354: heart sarcoma DOID:5262: heart sarcomaopen_in_newNCIT:C7723: open_in_newUMLS:C0238152: open_in_new