MRI
Sagittal T1 C+ fat sat
Axial T2 fat sat
Axial T1 C+ fat sat
Axial T1
Coronal STIR
Coronal T1 C+ fat sat
Axial T1 fat sat
On MRI, the lesion demonstrates heterogeneous high T2 and low T1 signal intensity replacing the most of the proximal bone marrow cavity of the right tibia. Post contrast administration shows heterogeneous enhancement of the medullary bone cavity. There is associated enhancing soft tissue component with central low enhancing region involving subcutaneous fat and the anterior compartment of the leg. No significant cortical breakthrough. The fibula appears unremarkable. The overall findings are highly suggestive of bone lymphoma.