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Fixed Ossicles as Related to Pneumatization

Fixed Ossicles as Related to Pneumatization Abstract CASES of conductive hearing loss that have been caused by anomalies of the ossicle chain are grouped together. The group, however, includes cases of entirely different causes. One such case was that reported by the author in 19561 in which he described the ossicle fixed to the epitympanum arising from pneumatization anomaly in the epitympanum. In this article the author presents six more cases of a similar type. Report of Cases Case 1.—This 23-year-old man gave a history of a 15-year gradual development of hearing loss in his left ear without any previous ear disease. Otoscopic examination showed slight inward depression in the tympanic membrane. Roentgenograms showed well-pneumatized mastoids. Audiologically, there was a high degree conductive hearing loss (Fig 1, top left) that resembled otosclerosis.At surgery, scarcely any space was visible in the roof of the epitympanum because of air cell formation in the epitympanum. The malleus head References 1. Goto, T., and Murashima, J.: Ankylosis of the Ossicle Caused of the Pneumatizations Anomaly in the Epitympanum , J Otorhinolaryng Soc Jap 59:1209, 1956. 2. Goodhill, V.: Fixed Malleus Syndrome , Trans Amer Acad Ophthal Otolaryng 70:370, 1966. 3. Powers, W.H.; Sheehy, J.L.; and House, H.P.: The Fixed Malleus Head: A Report of 35 Cases , Arch Otolaryng 85:177-181 ( (Feb) ) 1967.Crossref 4. Ueda, T.: Development of the Epitympanum and Auditory Ossicle Chain in Pneumatization of the Temporal Bone , J Otorhinolaryng Soc Jap 66:913, 1963. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Otolaryngology American Medical Association

Fixed Ossicles as Related to Pneumatization

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Publisher
American Medical Association
Copyright
Copyright © 1968 American Medical Association. All Rights Reserved.
ISSN
0003-9977
DOI
10.1001/archotol.1968.00760060549022
Publisher site
See Article on Publisher Site

Abstract

Abstract CASES of conductive hearing loss that have been caused by anomalies of the ossicle chain are grouped together. The group, however, includes cases of entirely different causes. One such case was that reported by the author in 19561 in which he described the ossicle fixed to the epitympanum arising from pneumatization anomaly in the epitympanum. In this article the author presents six more cases of a similar type. Report of Cases Case 1.—This 23-year-old man gave a history of a 15-year gradual development of hearing loss in his left ear without any previous ear disease. Otoscopic examination showed slight inward depression in the tympanic membrane. Roentgenograms showed well-pneumatized mastoids. Audiologically, there was a high degree conductive hearing loss (Fig 1, top left) that resembled otosclerosis.At surgery, scarcely any space was visible in the roof of the epitympanum because of air cell formation in the epitympanum. The malleus head References 1. Goto, T., and Murashima, J.: Ankylosis of the Ossicle Caused of the Pneumatizations Anomaly in the Epitympanum , J Otorhinolaryng Soc Jap 59:1209, 1956. 2. Goodhill, V.: Fixed Malleus Syndrome , Trans Amer Acad Ophthal Otolaryng 70:370, 1966. 3. Powers, W.H.; Sheehy, J.L.; and House, H.P.: The Fixed Malleus Head: A Report of 35 Cases , Arch Otolaryng 85:177-181 ( (Feb) ) 1967.Crossref 4. Ueda, T.: Development of the Epitympanum and Auditory Ossicle Chain in Pneumatization of the Temporal Bone , J Otorhinolaryng Soc Jap 66:913, 1963.

Journal

Archives of OtolaryngologyAmerican Medical Association

Published: May 1, 1968

References

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