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Association of cholesterol granuloma and aspergillosis in the sphenoid sinus

Hyunkoo Kang1, Jae-Kyun Kim, Yoonjung Kim

  • 1Department of Radiology, Seoul Veterans Hospital, Seoul, Korea. knroo@hanmail.net

Korean Journal of Radiology
|October 4, 2008
PubMed

Insights

This study reports a rare case of sphenoid sinus cholesterol granuloma (CG) co-occurring with fungal aspergilloma. MRI findings can aid in distinguishing CG from other sphenoid sinus masses.

Area of Science:

  • Otolaryngology
  • Radiology
  • Pathology

Background:

  • Cholesterol granuloma (CG) is typically linked to chronic middle ear disease and rarely occurs in paranasal sinuses.
  • Co-occurrence of CG with fungal infections, specifically aspergilloma, is exceptionally uncommon.

Observation:

  • A case of sphenoid sinus CG associated with aspergilloma in a 78-year-old male presenting with facial pain, headache, and toothache.
  • CT imaging revealed an expansile cystic mass in the sphenoid sinus with high signal intensity on T1 and T2 weighted MRI sequences.

Findings:

  • The sphenoid sinus mass was diagnosed as cholesterol granuloma (CG).
  • Similar suspected etiologic mechanisms, including impaired sinus drainage and ventilation obstruction, link both CG and paranasal sinus aspergilloma.

Implications:

  • MRI findings may be valuable in differentiating cholesterol granuloma from other paranasal sinus mass lesions.
  • Understanding shared etiologies can inform diagnostic and treatment strategies for complex sinonasal pathologies.

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