Ewing sarcoma appearance on MRI scan

Ewing's sarcoma of the right femur in a 16-year-old boy. Left panel, T1-weighted coronal MRI image of the right femur showing extensive destruction of the entire mid femur by tumor (arrows). Right panel, T1-weighted axial MRI image through the proximal femur with gadolinium and fat saturation. The tumor appeas hyperintense relative to the surrounding tissues (arrowheads).