connective tissue neoplasm connective tissue cancer fibrosarcoma UMLS_CUI:C0206643 UMLS_CUI:C1336021 NCI:C7075 SNOMEDCT_US_2021_09_01:443250000 MESH:D005354 NCI:C3043 GARD:2327 UMLS_CUI:C0016057 A connective tissue cancer that has_material_basis_in fibrous connective tissue and characterized by the presence of immature proliferating fibroblasts or undifferentiated anaplastic spindle cells in a storiform pattern. DOID:3355 ICDO:8810/3 DOID:3509 DOID:156 Fibrocytic tumor disease_ontology NCI:C6605 MESH:D018218 fibrosarcoma of soft tissue fibrous tissue neoplasm