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单词 Acoustic schwannoma
释义

Acoustic schwannoma

英语百科

Vestibular schwannoma

Illustration of acoustic neuroma.
3D rendering of acoustic neuroma.
Acoustic neuroma on the right with a size of 20x22x25mm

A vestibular schwannoma is a benign primary intracranial tumor of the myelin-forming cells of the vestibulocochlear nerve (8th cranial nerve). A type of schwannoma, this tumor arises from the Schwann cells responsible for the myelin sheath that helps keep peripheral nerves insulated. Although it is commonly called an acoustic neuroma, this a misnomer for two reasons. First, the tumor usually arises from the vestibular division of the vestibulocochlear nerve, rather than the cochlear division. Second, it is derived from the schwann cells of the associated nerve, rather than the actual neurons (neuromas).

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更新时间:2025/6/17 22:23:49