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1·Pyramidal eminence and chordal eminence should not be lowly abraded in order to avoid damaging the musculus stapedius and chorda tympani nerve when dealing with a facial recess lesion.

术中处理面神经隐窝病变时勿随意磨低锥隆起及鼓索隆起，以免损伤面神经镫骨肌支及鼓索神经。