- Imaging:
— Location: metaphyseal, femur
— Lytic or blastic: lytic
— Matrix: osteoid
— Zone of transition: (wide, narrow)
— Periosteal new bone or cortical destruction: aggressive disrupted periosteal reaction with Codman’s triangle, permeative cortical destruction
— Additionally: large extraosseous mass with osteoid matrix, skip lesions, fluid-fluid levels, cystic / necrotic / hemorrhagic, asymmetric expansion, minimal peripheral sclerosis - DDX: aneurysmal bone cyst, telangiectatic osteosarcoma has enhancing nodules / osteoid matrix / extraosseous soft tissue mass
- Clinical: 5% of osteosarcoma
Radiology Cases of Telangiectatic Osteosarcoma
