Eustachian tube mucous membrane damage due to mechanical obstruction.

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概要

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• Ten adult dogs were used in this study. The pharyngeal orifice of the Eustachian tube was obstructed by laminaria or electrocoagulation. The epithelium of the Eustachian tube was observed 1, 3 and 5 weeks after surgery by light microscope and scanning electronmicroscope. One week after obstruction effusion was noted in the middle ear cavity and the cilia of the Eustachian tube lost their metachronal wave. Three weeks later, there were numerous holes in the mucous membrane of the Eustachian tube. At the bottom of the holes, one could see the surface of goblet cells surrounded by adhesive cilia with mucus. At 5 weeks the effusion had progressed and the metachronal wave of the cilia had disappeared completely. Some of the cilia had disappeared and others were deformed.

• 耳鼻咽喉科臨床学会の論文

著者

• 山下 真理子

  広島大学医学部耳鼻咽喉科学教室

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• Eustachian tube mucous membrane damage due to mechanical obstruction.
• Morphological study of middle ear and Eustachian tube. Part-three. Intracellular fine structure of the Eustachian tube.:- Part-three; Intracellular Fine Structure of the Eustachian Tube -

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