Radiologically Unusual Presentation of Cholesterol Granuloma in the Sphenoid Sinus.
10.3342/kjorl-hns.2015.58.9.641
- Author:
Da Hee KIM
1
;
Seung Koo LEE
;
Chang Hoon KIM
;
Hyung Ju CHO
Author Information
1. Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea. hyungjucho@yuhs.ac
- Publication Type:Case Report
- Keywords:
Cholesterol granuloma;
Magnetic resonance imaging;
Mucocele;
Sphenoid sinus
- MeSH:
Cholesterol*;
Diagnosis;
Giant Cells, Foreign-Body;
Granuloma*;
Hemosiderin;
Macrophages;
Magnetic Resonance Imaging;
Mastoid;
Mucocele;
Paranasal Sinuses;
Sphenoid Sinus*
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2015;58(9):641-645
- CountryRepublic of Korea
- Language:English
-
Abstract:
Cholesterol granuloma is a histopathological diagnosis with features of cholesterol clefts, foreign body giant cells, and macrophages filled with hemosiderin. It is commonly found in the mastoid or petrous apex, but the involvement of paranasal sinuses is very rare. Radiologically, cholesterol granuloma show typical findings of hyperintense signals on both T1- and T2-weighted images on magnetic resonance imaging (MRI). We report two cases of cholesterol granuloma in the sphenoid sinus, which were first misinterpreted as mucoceles due to unusual MRI images.
