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I.はじめに
後天性外耳道狭窄または閉鎖症は外傷,熱傷,感染症などに続発するが,その修復に当たつては単に原因となつている組織の切除と遊離植皮の応用のみでは十分な効果があがらず,術後早期に再狭窄を来たすことが少なくないとされている1)。われわれは最近,本症の2症例に遭遇し,耳介窩で作製した有茎皮弁を用いる方法により修復治癒させ得たので,症例の概要を述べるとともに,その修復手術について若干の考察を加えたい。
Two cases of acquired atresia of the external ear canal with the methods of operative correction are reported.
Case Ⅰ. The atresia of the external ear canal, in an infant 4 months old, resulted from an attack of otitis media combined with the infection of the external ear canal and subsequent scarification.
Case Ⅱ. The atresia of the external ear canal occurred after traumatic injury of the external canal.
Operative corrections are made in both cases with satisfactory results; the methods used are described in detail.
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