Figure 5.
A deep soft tissue mass is intramuscularly located at the right gluteus maximus muscle (white arrow). The mass is isointense relative to adjacent muscle on T1 MR images (A). The mass has high SI and contains septations on T2MR image (B: white arrowhead). On gadolinium –enhanced T1 images (C), the lesion displays marked homogeneous enhancement. Internal septations remain unenhanced.