ブタ慢性中耳炎における扁平上皮化生

抄録

Squamous metaplasia of the middle ear mucosa was observed in inflamed ears induced in pigs in a series of experiments. The character of the stratified squamous epithelium caused by the metaplasia was then analyzed. The degree of inflammation was much greater in the ears with the squamous metaplasia. In contrast with the stratified squamous epithelium observed in the human aural cholesteatoma, in these cases of squamous metaplasia continuity to the ear drum was not seen, and there was very little keratinization of the epithelium and bone destruction. From these findings, it was considered that the formation and character of the metaplastic squamous epithelium in these cases is quite different from that in the human aural cholesteatoma.