Cerebrovascular Disease USMLE Step 1 Practice Question
An 81-year-old man with cerebral atrophy falls at home and strikes his head. Two weeks later, he presents with progressive confusion, headache, and gait disturbance. Vital signs show BP 168/92, HR 88, RR 16, temp 37°C. CT head reveals a crescent-shaped extra-axial hyperdense collection crossing suture lines. He denies focal neurologic deficits. Which vascular structure was most likely torn during the initial trauma?
Answer choices
- AAnterior spinal artery
- BBridging veinsCorrect answer
- CMiddle meningeal artery
- DLenticulostriate arteries
- EPosterior inferior cerebellar artery
- FVertebral artery
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