ISSN: 1859 - 2872
Assessment of imaging features on computed tomography of chronic otitis media
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Abstract
Summary
Objective: Chronic otitis media (COM), especially cholesteatoma COM, may result dangerous complications. The aim of this study is to describe the imaging characteristics on computed tomography (CT) in diagnosing COM. Subject and method: A cross-sectional descriptive study on patients who were diagnosed with COM undergoing a temporal bone CT scan, were operated and confirmed by pathology at Otology Department of National Hospital of Otorhinolaryngology from October 2017 to the end of September 2018. Result and conclusion: The study included 76 patients, mean age 41.0 ± 14.9 years, of which 24 patients with cholesteatoma COM and 52 patients with non-cholesteatoma COM. In non-cholesteatoma COM, a common sign was mastoid bone conduction (accounting for 100%), a rare sign of ossicles erosion (1.9 to 13.5%), no atrial wall, atrial ceiling erosion. In cholesteatoma COM, bone common lesions including: Erosion of epitympanum scutum (83.3%), erosion of epitympanum tegment (45.8%), posterior and anterior margin of the temporal bone (33.3%), enlargement of aditus and antrum (75%), ossicles erosion (incus erosion 100%, malleus erosion 83.3%, stapes erosion 37.5%). CT scans were very valuable with a high sensitivity, specificity, and accuracy in assessing bone lesions in patients with COM.
Keywords: Chronic otitis media, cholesteatoma, computerized stone bone computed tomography.
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References
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