Sandbox: Bone DDx
- 10-20 yo males
- Bone pain and swelling
- Pathologic fracture
- History of Paget disease of bone or irradiation
- Hemorrhage, fibrosis and cystic degeneration
- Areas of bone formation
- Poorly formed trabecular bone
- cellular pleomorphism and mitoses
- Metaphyseal regions of femur and tibia
- Medullary and cortical bone destruction
- Wide zone of transition with a moth-eaten appearance
- Sunburst and codman triangle
- Tumor matrix ossification/calcification