OrthoNet

Osteoblastoma

- males in 2nd decade
- posterior spinal elements most commonly involved
- sporadic long bone involvement

Signs & Symptoms:
- long-standing pain localized to affected area
- may cause painful scoliosis (if spine involved)

Xrays:
- variable & nonspecific
- often look like large osteoid osteomas but > 2 cm
- half are radiodense

Histology:
- irregularly arranged trabeculae of osteoid & woven bone
- quite cellular & vascular

Treatment:
- curettage & grafting