Osteoblastoma

  • 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

Picture

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