Sonographic Appearances of Liposarcoma: Correlations with Pathologic Subtypes
2019
Abstract
Liposarcomais the second most common malignant soft-tissue tumor. This entity is pathologically categorized into 4
subtypes: well-differentiated, myxoid, dedifferentiated and pleomorphic. Although features on magnetic resonance imaging and computed tomography for these 4
subtypeshave been reported quite precisely, those on sonography have not been fully investigated. The present study was therefore aimed at clarifying the sonographic appearances of each
liposarcoma
subtypeand assessing correlations with histopathology. The study population was made up of 35 cases, including 21 cases of well-differentiated
liposarcoma, 6 cases of
myxoid liposarcoma, 6 cases of dedifferentiated
liposarcomaand 2 cases of pleomorphic
liposarcoma. Compared with the other
subtypes, well-differentiated
liposarcomawas characterized by the high frequency of the following findings: isoechogenicity, tiny hyperechoic lines and hypovascularity ( p p p p
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