Osteoblastoma

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