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Related Experiment Videos

Sacral pneumatocysts: CT appearance

J Berenguer1, J Pomés, N Bargalló

  • 1Department of Radiology, Hospital Clinic i Provincial de Barcelona, Spain.

Journal of Computer Assisted Tomography
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

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Pneumatocysts of the sacrum are benign bone lesions often found with arthritic changes. CT scans show these lesions are subchondral with sclerotic margins, sometimes communicating with the sacroiliac joint.

Area of Science:

  • Radiology
  • Orthopedics
  • Pathology

Background:

  • Pneumatocysts are rare, benign bone lesions.
  • Sacral pneumatocysts are uncommon and may be associated with joint pathology.

Purpose of the Study:

  • To evaluate the CT findings of sacral pneumatocysts.
  • To characterize the imaging features and potential associations of these lesions.

Main Methods:

  • Retrospective review of CT scans from eight patients with sacral pneumatocysts.
  • Detailed analysis of lesion characteristics, including size, location, margins, and intralesional attenuation.
  • Assessment for communication with the sacroiliac joint and associated degenerative changes.

Main Results:

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  • All sacral pneumatocysts were subchondral with sclerotic margins, linked to the synovial portion of the sacroiliac joint.
  • Intraarticular gas was present in six patients; joint communication was seen in two.
  • Degenerative bone changes were evident in all cases.

    • Conclusions:

    • Sacral pneumatocyst is a benign bone lesion.
    • These lesions are associated with arthritic changes in the sacroiliac joint.