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ABSTRACT |
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Soft-tissue sarcoma most commonly occurs in the extremities, and MRI is the imaging method of choice in assessing the extent of extremity soft-tissue sarcoma. This interactive computerized exhibit initially reviews important clinicopathologic features of soft-tissue sarcoma and illustrates the pre- and post-surgical MRI appearances of extremity soft-tissue sarcomas. In selected cases gross and microscopic pathologic appearances or follow-up imaging findings of the illustrated lesions are provided. The incidence and MR appearances of post-surgical fluid collections as determined by a retrospective review of 62 cases are presented. The exhibit then reviews the clinicopathologic and MR imaging features of mimics of soft-tissue sarcoma including pseudotumors and bursal distensions. Familiarity with the clinicopathological features and MRI appearances of extremity soft-tissue sarcoma and its mimics assists the radiologist in the staging of soft-tissue sarcomas, aids in the detection of recurrence, and is essential to avoid confusing benign with malignant lesions. The viewer may view this exhibit in sequence or at random.
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