A mysterious lesion in the tibia

Case ID Number: 
20110307ML
Image Modality: 
MRI
Tumor Type: 
unknown tumor - all other
Benign/Malignant: 
unknown
Body Region: 
ankle and foot, leg
Bone Name: 
tibia
Location in bone:: 
metaphyseal
Periosteal Reaction: 
absent
Position within Bone: 
central
Tumor Behavior: 
latent
Tumor Density: 
lytic