NCIt related terms : Liposarcoma, well differentiated; Liposarcoma, differentiated;
CISMeF acronym : ALT;
NCIt definition : A locally aggressive mesenchymal neoplasm composed either entirely or partly of an
adipocytic proliferation showing at least focal nuclear atypia in both adipocytes
and stromal cells. Atypical lipomatous tumor and well-differentiated liposarcoma are
synonyms describing lesions that are morphologically and genetically identical. Amplification
of MDM2 and/or CDK4 is almost always present. (WHO 2020);