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Comparison of duration of deafness and tumour invasion to the inner ear from metastatic tumours of the internal auditory canal: human temporal bone pathology

Published online by Cambridge University Press:  08 March 2006

Shinichi Nishimura
Affiliation:
Department of Otolaryngology, Faculty of Medicine University of Tokyo, Japan.
Kimitaka Kaga
Affiliation:
Department of Otolaryngology, Faculty of Medicine University of Tokyo, Japan.
Toshihiro Tsuzuku
Affiliation:
School of Medicine, Teikyo University, Japan.
Yukiko Iino
Affiliation:
School of Medicine, Teikyo University, Japan.

Abstract

Four cases (seven ears) of metastatic tumour of the internal auditory canal were studied. The histopathological findings confirmed that the inner ear invasion of the tumour follows a unique course, as reported in the literature. Relationship between duration of deafness and extent of tumour invasion in the inner ear is discussed. It is suggested that the deafness could occur via neural invasion or compression near the ductus spiralis foraminosus.

Type
Research Article
Copyright
© Royal Society of Medicine Press Limited 2002

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