Small tympanic cavity and enlarged eustachian tube and tympanic sinus were found in 1 case respectively.

合并小鼓室1例，耳咽管和鼓室窦畸形扩大1例。

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Small tympanic cavity and enlarged eustachian tube and tympanic sinus were found in 1 case respectively.

合并小鼓室1例，耳咽管和鼓室窦畸形扩大1例。

youdao