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Related Experiment Videos

Orbital histiocytosis X

W K Erly1, R F Carmody, R M Dryden

  • 1Department of Radiology, University of Arizona, Tucson, USA.

AJNR. American Journal of Neuroradiology
|June 1, 1995
PubMed
Summary

CT scans reveal aggressive bone lesions in histiocytosis X affecting the orbit. Findings include orbital wall destruction, soft-tissue extension, and cranial base erosion, impacting adjacent structures.

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Area of Science:

  • Radiology
  • Oncology
  • Ophthalmology

Background:

  • Histiocytosis X, also known as Langerhans cell histiocytosis, is a rare clonal proliferative disease.
  • Orbital involvement in histiocytosis X can lead to significant morbidity.

Observation:

  • Review of CT scans from three patients with histiocytosis X and orbital involvement.
  • Detailed analysis of lesion characteristics, extent, and associated findings.

Findings:

  • Consistent destructive lesion of the lateral orbital wall with significant soft-tissue component.
  • Extension into extraconal space, ocular adnexa, and infratemporal fossa.
  • Erosion of the sphenoid greater wing with epidural extension into the middle cranial fossa; cavernous sinus and additional bone lesions observed in two patients.

Implications:

  • Highlights the aggressive nature of orbital histiocytosis X.
  • Emphasizes the importance of detailed CT imaging for diagnosis and staging.
  • Suggests potential for extensive local invasion and intracranial spread.

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