A 45-year-old woman presents with a 2-year history of progressive right-sided sensorineural hearing loss and tinnitus. She reports imbalance but denies vertigo. Vital signs: BP 128/82, HR 76, RR 14, Temp 37°C, SpO2 98%. Neurologic examination reveals right-sided diminished hearing and positive Romberg sign. Brain MRI demonstrates a 2-cm enhancing mass at the right cerebellopontine angle arising from CN VIII. Audiometry confirms sensorineural hearing loss. Which diagnosis best explains these findings?
- A)Medulloblastoma
- B)Meningioma
- C)Vestibular schwannomaGABARITO
- D)Pituitary adenoma
- E)Glioblastoma
Explicação
Vestibular schwannoma is the correct answer because a cerebellopontine angle tumor arising from CN VIII causes progressive unilateral sensorineural hearing loss, tinnitus, and imbalance; bilateral lesions suggest NF2. Ver explicação completa e trilha adaptativa →