EWSR1 and round cell liposarcoma: Myxoid/round-cell liposarcomas are the most common subtype of liposarcoma in the extremity/trunk wall localization, which shows histologically continuous morphologic spectrum-sharing characteristic chromosome rearrangement t(12;16) resulting in DDIT3-FUS (95%) or EWS-CHOP (5%) fusion [1, 10, 13] with diagnostic and possible treatment implications.