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학습 자료 둘러보기 →The hallmark finding is unilateral sensorineural hearing loss with a gradual onset. This occurs as the slow-growing tumor compresses the cochlear nerve within the internal auditory canal.
Tinnitus is often present but is also unilateral. Vertigo is usually mild and unsteady, not the severe room-spinning vertigo of acute labyrinthitis.
Do not dismiss gradual unilateral hearing loss as age-related changes. Early diagnosis with MRI with gadolinium is critical, as larger tumors (>3 cm) can cause brainstem compression and increased intracranial pressure.
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