Tympanic sclerosis

Tympanic sclerosis, also known as tympanic glass degeneration, is a plaque-like collagen tissue deposited under the epithelium of the tympanic mucosa, which occurs mostly on the tympanic mucosa and the ossicle. Those that occur on the tympanic membrane are still called calcified plaques, which make the tympanic mucosa become milk Like material, covering the ossicle, oval window, and round window, it adheres to the bone, as if coated with an envelope, the person involving the upper tympanum is heavier, and the person involving the lower tympanum is lighter. Bone and tendon are the most vulnerable, so many people are deaf. This disease was discovered by Cassebohm in the 18th century, but it did not receive much attention. It was not clinically noticed until a large number of micro-auricular operations were performed in modern times (1955).

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