liposarcoma dedifferentiated liposarcoma https://github.com/monarch-initiative/mondo/issues/6959 https://www.malacards.org/card/dedifferentiated_liposarcoma dedifferentiated liposarcoma UMLS:C0205824 A high-grade subtype of liposarcoma (LS) that progresses from well-differentiated liposarcoma (WDLS), and most often occurs in the retroperitoneum. It is defined as a region of nonlipogenic sarcoma associated with WDLS. MEDGEN:60028 ICDO:8858/3 DOID:0080531 EFO:0003085 MONDO:0020563 ONCOTREE:DDLS GARD:0019720 DDLS NCIT:C3704 ICD9:171.9 Orphanet:99970 DDLPS SCTID:404072004