• Benign vascular, osteoid and bone forming tumour
• Osteoblastic origin
• May be aggressive

Common sites:

• Rare in jaws – molar premolar region, mandible > maxilla.
• Femur
• Tibia
• Phalanges

Clinical:

• Aggressive
• Pain
• Intact cortical expansion

Histology:

• Well demarcated mass
• Oval/round osteoblast like cells + some osteoclasts,
• Partially calcified osteoid
• Vascular spaces

Radiology: Poorly defined radiolucency

Management: Surgical excision

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