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Inner ear cholesteatoma and the preservation of cochlear function

Published online by Cambridge University Press:  29 June 2007

Roberto Gamoletti ,
Mario Sanna ,
Carlo Zini ,
Abdel-Kader Taibah ,
Enrico Pasanisi  and
Luca Vassalli
Roberto Gamoletti*
Affiliation:
Parma, Italy
Mario Sanna
Affiliation:
Parma, Italy
Carlo Zini
Affiliation:
Parma, Italy
Abdel-Kader Taibah
Affiliation:
Parma, Italy
Enrico Pasanisi
Affiliation:
Parma, Italy
Luca Vassalli
Affiliation:
Parma, Italy
*
Via Fatebenefratelli 20, 20075 Lodi (Mi)—Italy.
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Abstract

Labyrinthine destruction by direct cholesteatoma invasion has always been considered a serious threat to the inner ear function.

A number of reports in the literature have cited both patients who had preservation of hearing despite widespread erosion of the labyrinth by cholesteatoma and patients who had retained auditory function despite surgical removal of the matrix from the labyrinth. In most cases the vestibular portion of the inner ear was invaded but cases of cochlear involvement have been described as well.

Twelve cases with pre-operative auditory function preservation despite extensive labyrinthine destruction treated at our Institution are reported. Seven cases retained cochlear function post-operatively.

Possible explanations of this occurrence and implications of related with hearing preservation in the presence of widespread inner ear destruction by chronic inflammatory disease are discussed.

Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 104 , Issue 12 , December 1990 , pp. 945 - 948
Copyright
Copyright © JLO (1984) Limited 1990

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