Cerebrovascular Disease USMLE Step 1 Practice Question
A 62-year-old man with hypertension presents with sudden onset vertigo and vomiting. Vital signs: BP 168/94, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Examination reveals right facial paralysis with decreased lacrimation, altered taste on anterior two-thirds of tongue, and right sensorineural hearing loss. He demonstrates loss of pain and temperature sensation on the left body and right face. Brain MRI shows acute infarction in the rostral medulla. Which artery is most likely occluded?
Answer choices
- APosterior cerebral artery
- BAnterior spinal artery
- CPosterior inferior cerebellar artery
- DAnterior inferior cerebellar arteryCorrect answer
- ELenticulostriate artery
- FSuperior cerebellar artery
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