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Inner ear malformations with oto-liquorrhea. Tomographic findings in three cases with a mixed hearing impairment

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Summary

The paper deals with three boys suffering from a mixed hearing loss. They were all referred to tomography of the temporal bones in order to find some middle ear malformation amenable to surgery. The tomograms revealed identical malformations of the inner ear; the lumen of the labyrinth are found irregularly dilated and the internal acoustic meatus is widened. Its course in the lateral end is abnormal with a downwards turn towards the basal coil of the cochlea. Explorative tympanotomy in one of the patients revealed a severe otoliquorrhea during an attempt to perform a stapedectomy, and this may serve as a warning against operation in patients presenting the mentioned tomographic changes which, once seen, are easily recognized.

Zusammenfassung

Die Arbeit berichtet über drei Jungen, bei denen eine kombinierte Schwerhörigkeit bestand. Bei allen wurde die Tomographie der Ossa Temporalia durchgeführt, um Mißbildungen des mittleren Ohres mit der Möglichkeit der chirurgischen Intervention aufzuzeigen. Die Tomogramme zeigten identische Mißbildungen des inneren Ohres: Die Lumina des Labyrinthes waren unregelmäßig diktiert und der Meatus acusticus internus erweitert. Er verlief am lateralen Ende in Richtung der Basalwindung der Cochlea. Bei Tympanotomie und Versuch der Stapedektomie bei einem der Patienten kam es zu einer schweren Otoliquorrhoe. Dieser Befund soll als Wagung dienen, bei Patienten die solche tomographische Befunde zeigen, zu operieren; Befunde, die, einmal gesehen, leicht erkannt werden können.

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Jensen, J., Terkildsen, K. & Thomsen, K.A. Inner ear malformations with oto-liquorrhea. Tomographic findings in three cases with a mixed hearing impairment. Arch Otorhinolaryngol 214, 271–282 (1977). https://doi.org/10.1007/BF00458322

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  • DOI: https://doi.org/10.1007/BF00458322

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