Dedifferentiated liposarcoma with extensive cystic change causing significant diagnostic challenges: report of two cases and review of the literature
Abstract Background Retroperitoneal dedifferentiated liposarcoma is a rare, aggressive malignancy, characterized by high rates of recurrences and the potential for metastasis.On imaging, these tumors typically present as a solid mass with lipomatous and non-lipomatous components.Cystic changes of dedifferentiated liposarcomas is exceedingly rare an