MRI
Sagittal MPRAGE
Sagittal T1 C+ fat sat
Sagittal T2
Axial T1 fat sat
Axial T1 C+ fat sat
Axial T2 fat sat
An intermuscular well-circumscribed vividly enhancing mass posterior to the proximal tibia. It is of homogeneous low signal on T2 with central cystic changes.