Skeletal Radiology

, Volume 36, Issue 3, pp 259–264

Periosteal osteoblastoma: report of a case with a rare histopathologic presentation and review of the literature

  • S. M. Javad Mortazavi
  • Doris Wenger
  • Saeed Asadollahi
  • Shams Shariat Torbaghan
  • K. Krishnan Unni
  • Sadegh Saberi
Case Report

DOI: 10.1007/s00256-006-0169-2

Cite this article as:
Mortazavi, S.M.J., Wenger, D., Asadollahi, S. et al. Skeletal Radiol (2007) 36: 259. doi:10.1007/s00256-006-0169-2

Abstract

Osteoblastoma is an uncommon benign bone tumor most commonly located in the vertebral column or metaphysis of a long bone. Periosteal location is rare. We report a periosteal-based osteoblastoma, arising from the proximal tibia, in a 20-year-old woman who presented with knee swelling and pain of 2-year duration. Imaging studies showed a metaphyseal surface-based lesion with patchy radiodensities. The cortico-medullary junction was intact. The lesion was totally excised. Histopathologic evaluation disclosed immature bone and osteoid deposition in a vascularized stroma, associated with numerous osteoblasts and osteoclasts rimming the bony trabeculae. Plate-like arrangements of cartilage in the margin of the neoplastic tissue were also identified. At 16 months postoperatively, the patient was well without recurrence. Although extremely unusual, the presence of cartilage does not necessarily exclude the diagnosis of osteoblastoma.

Keywords

OsteoblastomaPeriostealCartilage

Copyright information

© ISS 2006

Authors and Affiliations

  • S. M. Javad Mortazavi
    • 1
  • Doris Wenger
    • 2
  • Saeed Asadollahi
    • 1
  • Shams Shariat Torbaghan
    • 4
  • K. Krishnan Unni
    • 3
  • Sadegh Saberi
    • 1
  1. 1.Department of Orthopedic Surgery, Imam HospitalTehran University of Medical SciencesTehranIran
  2. 2.Diagnostic RadiologyMayo ClinicRochesterUSA
  3. 3.Department of PathologyMayo ClinicRochesterUSA
  4. 4.Department of Pathology, Imam HospitalTehran University of Medical SciencesTehranIran