General Pathology USMLE Step 1 Practice Question
A 74 year old woman with long standing atrial fibrillation not taking anticoagulation is brought to the emergency department because of sudden right sided weakness and aphasia that began 3 hours ago. CT scan is initially negative for hemorrhage, and she is treated for an acute ischemic stroke. One week later, the infarcted region in the brain is expected to show which of the following processes?
Answer choices
- AHydrolytic enzyme mediated digestion resulting in a cystic cavityCorrect answer
- BFormation of a cheesy acellular center with multinucleated giant cells
- CReplacement by dense collagen scar without prior phagocytic reaction
- DCoagulation of structural proteins with preservation of cell outlines
- EDeposition of calcium soaps in peripancreatic fat
- FReactive astrocytosis forming a glial scar at the infarct margin
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