Outer ear canal stenosis

The external ear canal is a curved tube from the external ear canal to the eardrum, with a total length of about 2.1-2.5 cm. The outer 1/3 is cartilage and the inner 2/3 is bony. The narrowing of the external auditory canal includes both congenital and acquired. Otitis can also cause narrowing of the external auditory canal.

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