= MYXOID MALIGNANT FIBROUS HISTIOCYTOMA

= among the most common sarcomas in elderly

Histo: resembles myxoid liposarcoma with infiltrative growth along fascial planes

MR: similar to myxoma + myxoid liposarcoma

• low to intermediate SI on T1WI + high SI on T2WI
• septa of low SI
• NO fatty component
• hyperintense cystlike myxoid component
• heterogeneous nodular + peripheral enhancement of solid components

Prognosis: multiple recurrences ← infiltrative growth

DDx: other adult pleomorphic sarcomas (difficult DDx)