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February 1969

Tomographic Findings in Cochlear Otosclerosis

Author Affiliations

From the Department of Radiology, University of Illinois, College of Medicine, Chicago.

Arch Otolaryngol. 1969;89(2):377-380. doi:10.1001/archotol.1969.00770020379025

IN THE past four years I have had the opportunity to perform tomographic examinations for the study of the cochlear capsule in over 1,000 cases. This series includes (1) control group of 50 cases with normal hearing and normal audiometric findings, (2) approximately 500 patients with known stapedial otosclerosis and combined sensorineural hearing loss, and (3) over 500 cases with pure sensorineural hearing loss in which the diagnosis of cochlear otosclerosis was suspected on the basis of audiometric configuration, age of onset, and progression as well as in some cases the family history and or positive Schwartze's sign.

I do not intend to present to you a statistical tabulation of the results and of the correlations with the audiometric data as Dr. Naunton and I have done for a smaller group of 90 cases.

It is the purpose of this paper to (1) review the radiographic appearance of the normal

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