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Osteoid osteoma.

M J Kransdorf1, M A Stull, F W Gilkey

  • 1Department of Radiologic Pathology, Armed Forces Institute of Pathology, Washington, DC 20306-6000.

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|July 11, 1991
PubMed
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Osteoid osteoma, a benign bone tumor, typically presents as painful lesions in long bones. Imaging like CT scans is crucial for diagnosing subtle intraarticular osteoid osteomas.

Area of Science:

  • Orthopedic Oncology
  • Skeletal Radiology

Background:

  • Osteoid osteoma is a benign skeletal neoplasm characterized by osteoid and woven bone, usually under 1.5 cm.
  • Commonly found in long bone cortex, it causes dense reactive sclerosis; cancellous or intraarticular locations present differently with less intense sclerosis and potential synovitis.

Purpose of the Study:

  • To describe the characteristics and diagnostic approaches for osteoid osteoma.
  • To highlight the challenges in diagnosing intraarticular osteoid osteoma and the role of advanced imaging.

Main Methods:

  • Review of clinical presentation, radiographic findings, and imaging characteristics of osteoid osteoma.
  • Emphasis on the utility of scintigraphy and computed tomography (CT) for subtle and intraarticular lesions.

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Main Results:

  • Cortical osteoid osteomas are often diagnosed via radiographs due to characteristic reactive sclerosis.
  • Intraarticular osteoid osteomas can be subtle, necessitating scintigraphy and CT for accurate localization and diagnosis.

Conclusions:

  • Osteoid osteoma diagnosis relies on characteristic imaging findings, with CT being essential for precise localization, especially in intraarticular cases.
  • Early and accurate diagnosis facilitates appropriate percutaneous treatment or management of associated joint symptoms.