Acoustic Neuroma Symptoms: Recognizing the Signs
Acoustic neuroma (vestibular schwannoma) is a benign tumor on the vestibulocochlear nerve (CN VIII). As it grows, it compresses adjacent structures:
- Hearing loss: Usually gradual, unilateral; often with tinnitus (ringing/buzzing).
- Vestibular symptoms: Imbalance, unsteadiness, vertigo (spinning sensation).
- Facial nerve (CN VII) compression: Weakness, drooping, twitching on one side.
- Trigeminal nerve (CN V) compression: Facial numbness, tingling, or pain.
- Brainstem compression (large tumors): Headaches, hydrocephalus, ataxia, dysphagia, hoarseness (CN IX/X).
- Optic nerve compression (very large): Visual field defects, blurred/double vision.
Early diagnosis via MRI improves outcomes. Treatment options: observation (small, asymptomatic), stereotactic radiosurgery, or microsurgical resection.
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