Source:http://linkedlifedata.com/resource/umls/id/C0205766
NCI: A soft tissue neoplasm of uncertain lineage characterized by the presence of neoplastic spindle-shaped to round cells in a fibromyxoid stroma. Metaplastic bone formation may or may not be present.,NCI: A benign soft-tissue neoplasm of uncertain lineage, characterized by the presence of neoplastic spindle-shaped to round cells and a fibromyxoid stroma.