Fenestral otosclerosis: significance of preoperative CT evaluation

Thirty-five consecutive patients with the clinical diagnosis of fenestral otosclerosis were evaluated with high-resolution computed tomography (CT). Twenty-six were diagnosed as having this disorder by CT evidence of abnormal bony excrescences at or adjacent to the oval window. The diagnosis was mad...

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Bibliographic Details
Published inRadiology Vol. 151; no. 3; p. 703
Main Authors Swartz, J D, Faerber, E N, Wolfson, R J, Marlowe, F I
Format Journal Article
LanguageEnglish
Published United States 01.06.1984
Subjects
Adult
Aged
Female
Fenestration, Labyrinth
Humans
Male
Middle Aged
Otosclerosis - diagnostic imaging
Otosclerosis - surgery
Time Factors
Tomography, X-Ray Computed
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Summary:Thirty-five consecutive patients with the clinical diagnosis of fenestral otosclerosis were evaluated with high-resolution computed tomography (CT). Twenty-six were diagnosed as having this disorder by CT evidence of abnormal bony excrescences at or adjacent to the oval window. The diagnosis was made upon examination of 1.5-mm-thick targeted sections obtained at 0.5-mm intervals in the axial projection. Coronal sections were also included. Sections were also evaluated for evidence of plaque formation elsewhere in the lateral wall of the labyrinth and for surgical obstacles such as an abnormally wide cochlear aqueduct, a high jugular vein, and a dehiscent facial nerve. It is concluded that fenestral otosclerosis may be accurately diagnosed with proper CT techniques.
ISSN:0033-8419
DOI:10.1148/radiology.151.3.6718730