Osteoblastoma of the spine is rare, accounting for 5 to 10.6 % of primary bone tumors of the spine other than myeloma. About 25-40 % of the osteoblastomas occur in the axial skeleton. They are most often en-countered in the lumbar, thoracic, cervicai spine and sacrum decreasing in frequency respectively. Here, we report three cases of osteoblastoma that had occurred in the first, second and third lumbar vertebrae. Pa-tients were fifteen, nine and tvventythree years old respectively. Low back pain was the most prominent symptom. Ali three patients were treated with marginal surgical excision. At last follow-up, after at least tvvelve months, no evidence of recurrence was observed.
Keywords: Osteoblastoma, spine.,