Audio channel

Endoscopy is a radiographic examination of the auditory canal to observe the condition of the posterior cranial fossa. Inner audiograms are used to observe the condition of the posterior cranial fossa. The normal internal auditory canal diameter is 4-7mm, and the sides are often not completely equal, but the difference should not exceed 2mm. Exceeding this limit should indicate the presence of lesions. Auditory neurofibromas can cause enlarged inner auditory canals.

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