Benign Fibrous Histiocytoma

Image Modality: 
MRI
Benign/Malignant: 
Benign
Body Region: 
knee, thigh, distal femur, proximal tibia
Location in bone:: 
epiphyseal
metaphyseal
Periosteal Reaction: 
absent
Position within Bone: 
central
Tumor Behavior: 
active
Tumor Density: 
lytic