Cerebrovascular Disease USMLE Step 1 Practice Question
A 73-year-old woman presents with acute onset apathy and difficulty initiating speech. Vital signs show BP 158/92 mmHg, HR 88 bpm, RR 16, temp 37.2°C, SpO2 98% on room air. Examination reveals profound weakness and sensory loss of the left leg with relatively preserved strength in the left face and arm. Brain MRI shows acute ischemic stroke in the distribution of a single vessel. She denies recent trauma. Which artery is most likely affected?
Answer choices
- ABasilar artery
- BMiddle cerebral artery
- CPosterior cerebral artery
- DAnterior cerebral arteryCorrect answer
- ELenticulostriate artery
- FAnterior choroidal artery
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