目的：分析先天性外耳道狭窄合并鼓室、听小骨畸形的CT表现。

Objective: To analyze ct finding of congenital stenosis of external meatus.

youdao

目的：分析先天性外耳道狭窄合并鼓室、听小骨畸形的CT表现。

Objective: To analyze ct finding of congenital stenosis of external meatus.

youdao