In pathology, I didn't have many chances to see the inner ear.

The most common pathology in the ear includes ear cancer (squamous/basal/melanoma/adnexal), CP angle tumor (schwannoma, meningioma, astrocytoma, etc.), cholesteatoma, or myringosclerosis.

There was one rare case of endolymphatic sac tumor associated with von Hippel-Lindau syndrome.

Alport syndrome is associated with deafness, and but the patient is diagnosed with kidney biopsy, not ear (?) biopsy.

Anyway, I didn't know it is very hard to make a good section for Organ of Corti. I will try if I get a chance.