The difference in congenital cholesteatoma CT findings based on the type of mass

Abstract Objective A retrospective assessment of differences in congenital cholesteatoma CT findings with a focus on type of cholesteatoma mass. Materials and methods The medical records and CT images of 14 patients with congenital cholesteatomas in the middle ear who underwent surgery at our instit...

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Bibliographic Details
Published in:Diagnostic and interventional imaging 2016-01, Vol.97 (1), p.65-69
Main Authors: Tada, A, Inai, R, Tanaka, T, Marukawa, Y, Sato, S, Nishizaki, K, Kanazawa, S
Format: Article
Language:English
Subjects:
Child
Child, Preschool
Cholesteatoma, Middle Ear - classification
Cholesteatoma, Middle Ear - congenital
Cholesteatoma, Middle Ear - diagnostic imaging
Cholesteatoma, Middle Ear - pathology
Closed type
Computed tomography
Congenital cholesteatoma
Female
Humans
Infant
Male
Middle ear
Open type
Radiology
Retrospective Studies
Tomography, X-Ray Computed
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Summary:Abstract Objective A retrospective assessment of differences in congenital cholesteatoma CT findings with a focus on type of cholesteatoma mass. Materials and methods The medical records and CT images of 14 patients with congenital cholesteatomas in the middle ear who underwent surgery at our institution between January 2009 and July 2014 were reviewed. Cholesteatomas were classified as closed type, open type, or mixed type based on intraoperative findings. The CT findings including cholesteatoma size, location, and shape were retrospectively reviewed. Results Eight patients had closed type cholesteatomas, four had mixed type, and two had open type. The mean size of all cholesteatomas was 5.1 mm. None of the cholesteatoma types indicated a tendency towards a certain location. The round shape was observed more frequently in closed type cholesteatomas than in other types (closed: 5/8; mixed: 1/4; open: 0/2). Two large closed type cholseteatomas and two mixed type cholesteatomas exhibited a constricted shape. Both of the open type cholesteatomas displayed an irregular shape. Conclusion Small closed type congenital cholesteatomas were typically observed as round shaped lesions, but large closed type cholesteatomas and other type cholesteatomas tended to display shapes other than round.
ISSN:2211-5684
2211-5684
DOI:10.1016/j.diii.2015.02.008