A pathological fracture in a 10 year old boy

Case ID Number: 
20120907RR
Image Modality: 
path image
Tumor Type: 
Tumors of Bone
Benign/Malignant: 
Benign
Body Region: 
shoulder, humerus, upper arm
Bone Name: 
humerus
Location in bone:: 
diaphyseal
Periosteal Reaction: 
absent
Position within Bone: 
central
Tumor Behavior: 
active
Tumor Density: 
lytic