A boy from Sicily with knee pain

Case ID Number: 
20090727FS
Image Modality: 
MRI
Tumor Type: 
Tumors - unknown type
Benign/Malignant: 
unknown
Body Region: 
knee, thigh, distal femur, proximal tibia
Bone Name: 
femur
Location in bone:: 
diaphyseal
metaphyseal
Periosteal Reaction: 
present
Position within Bone: 
central
Tumor Behavior: 
aggressive
Tumor Density: 
mixed