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Undifferentiated Spindle Cell Sarcoma

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Undifferentiated Spindle Cell Sarcoma

Elliot K. Fishman, MD
Director of Diagnostic Imaging and Body CT, Professor of Radiology and Radiological Science, Johns Hopkins
Karen M. Horton, MD
Professor and Interim Chair, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins
 
 

3.4 x 3.1 x 1.7 cm heterogeneous T1 hyperintense and markedly T2 hyperintense lesion with dark signal on gradient echo sequences in the subcutaneous tissues at the medial condyle. No microscopic fat was identified. While these imaging features suggest a hematoma, there was septal and peripheral nodular enhancement as well as perilesional edema, raising concern for a hemorrhagic mass. Biopsy confirmed an undifferentiated spindle cell sarcoma.