弛緩部型真珠腫を伴った多発性中耳真珠腫の2例

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  • Two Cases of Multiple Cholesteatomas Combined with Attic Cholesteatoma
  • リンショウ シカンブガタ シンジュ シュ オ トモナッタ タハツセイ チュウジ シンジュ シュ ノ 2レイ

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We report herein on 2 of multiple cholesteatomas combined with attic cholesteatoma. Microscopic examination of the tympanic membrane and CT scan of the temporal bone indicated attic cholesteatoma in each case. Surgical exploration demonstrated the presence of another cholesteatoma and there was no epithelial continuity between the lesion and the attic cholesteatoma.<br> In both cases, it is probable that the cholesteatoma of the mastoid antrum and attic cholesteatoma were unrelated. In case 1, chronic inflammation may have obstructed the tympanic isthmus and the pars flaccida was retracted secondarily. In case 2, both lesions may have been congenital and one of them perforated the tympanic membrane and appeared to be acquired cholesteatoma.<br>

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