ACOUSTIC NEURILEMMOMA Meaning and
Definition
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Acoustic neuroma, also known as vestibular schwannoma or acoustic neurilemmoma, refers to a rare noncancerous tumor that grows on the nerve responsible for transmitting sound and balance information from the inner ear to the brain. Specifically, this nerve is called the vestibulocochlear nerve or the eighth cranial nerve.
The term "acoustic" in acoustic neuroma refers to the fact that the tumor develops near the acoustic (or auditory) portion of the nerve. "Neurilemmoma" suggests that the tumor arises from the cells known as Schwann cells, which produce the protective covering (myelin sheath) around nerves.
Acoustic neuromas usually arise from the Schwann cells in the internal auditory canal, the bony canal that connects the inner ear to the brainstem. Although these tumors are typically benign, meaning they do not spread to other parts of the body, they can grow and press on nearby structures, including the neighboring cranial nerves and parts of the brain.
Symptoms of acoustic neuroma can vary and may include hearing loss, ringing in the affected ear (tinnitus), dizziness or imbalance, difficulty with facial muscle control, and problems with coordination. Treatment options for acoustic neuromas depend on various factors, including the size of the tumor, the severity of symptoms, and the individual's overall health. Treatment may involve observation, radiation therapy, or surgical removal of the tumor.
Common Misspellings for ACOUSTIC NEURILEMMOMA
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Etymology of ACOUSTIC NEURILEMMOMA
The word "acoustic neurilemmoma" is a medical term used to describe a benign tumor that most commonly occurs on the eighth cranial nerve, also known as the vestibulocochlear nerve. The etymology of this term can be broken down as follows:
1. Acoustic: The term "acoustic" is derived from the Greek word "akoustikos", which means "pertaining to hearing" or "pertaining to sound". In the context of acoustic neurilemmoma, it refers to the tumor's location on the vestibulocochlear nerve, which is responsible for hearing and balance.
2. Neurilemmoma: The term "neurilemmoma" is a combination of two words—neurilemma and -oma.
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