title: Liposarcoma: patterns of tumor differentiation following induction chemotherapy.
abstract: This report describes the clinical and pathological features and evolution of 2 cases of locally advanced undifferentiated liposarcoma. In each case, a tumor differentiation was noted after induction chemotherapy, which otherwise determined in both patient a dramatic tumor response. This may be explained by heterogenicity of the primary tumors, which may include several cell contingents with different responses to chemotherapy. This constitutes a potential impediment to the efficacy of induction or adjuvant chemotherapy.
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D003131:Combined Modality Therapy; D003520:Cyclophosphamide / Q000008:administration & dosage; D003606:Dacarbazine / Q000008:administration & dosage; D004317:Doxorubicin / Q000008:administration & dosage; D006801:Humans; D008080:Liposarcoma / Q000188:drug therapy* / Q000473:pathology; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage; D011882:Radiotherapy, High-Energy; D012983:Soft Tissue Neoplasms / Q000188:drug therapy* / Q000473:pathology; D013848:Thigh; D014750:Vincristine / Q000008:administration & dosage
chemical_list: D014750:Vincristine; D003606:Dacarbazine; D004317:Doxorubicin; D003520:Cyclophosphamide; D008727:Methotrexate