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Telangiectatic osteosarcoma--a case report.

Y L Suh1, J G Chi

  • 1Department of Pathology, Seoul National University Children's Hospital, Korea.

Journal of Korean Medical Science
|June 1, 1989
PubMed
Summary
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Telangiectatic osteosarcoma, a rare bone cancer, presents as a destructive, lytic lesion. Accurate diagnosis requires careful microscopic examination to distinguish it from benign conditions like aneurysmal bone cysts.

Area of Science:

  • Orthopedic Oncology
  • Pediatric Pathology
  • Skeletal Radiology

Background:

  • Telangiectatic osteosarcoma (TOS) is a rare variant of osteosarcoma.
  • It exhibits unique radiologic, gross, and microscopic characteristics.
  • TOS is predominantly a lytic and destructive bone tumor without sclerosis.

Observation:

  • A case of TOS in a 7-year-old boy with a pathologic fracture of the distal tibia is presented.
  • Radiographic examination revealed a purely lytic lesion.
  • The lesion demonstrated aggressive behavior with five recurrences within one year.

Findings:

  • Initial biopsy was challenging to differentiate from aneurysmal bone cyst due to prominent cystic, blood-filled spaces.
  • Definitive diagnosis of TOS was established from the amputation specimen.

Related Experiment Videos

  • Anaplastic osteoid-producing stromal cells within the septa separating blood cysts confirmed the diagnosis.

    • Implications:

    • Highlights the diagnostic challenges in differentiating TOS from aneurysmal bone cysts, especially on initial biopsy.
    • Emphasizes the importance of thorough histopathological examination for accurate diagnosis of rare bone tumors.
    • Underscores the aggressive nature and potential for recurrence of telangiectatic osteosarcoma.