Abstract
Liposarcoma is a one of the common soft tissue sarcomas, and is estimated to represent 16–18% of sarcomas in adults. According to the World Health Organization, this tumor is mainly classified into five subtypes: well-differentiated, dedifferentiated, myxoid/round, pleomorphic and mixed-type. Previous papers have reported that radiological information for liposarcoma is correlated with the radiological and histopathological findings. In liposarcoma, when biphasic patterns composed of a lipogenic tumor with a sarcomatous appearance are found on radiological examination of computed tomography and/or magnetic resonance imaging, dedifferentiated liposarcoma, defined as a “malignant adipocytic neoplasm showing transition from atypical lipomatous tumor/well-differentiated liposarcoma to non-lipogenic sarcoma of variable histological grade”, is usually considered.
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