A 45-year-old male presents with a blood pressure of 210/130 mmHg, papilledema, and acute renal failure. A kidney biopsy is likely to show which of the following vascular changes?
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Correct answer: Onion-skinning of the arteriolar walls
The clinical presentation describes malignant hypertension. The characteristic histological finding is hyperplastic arteriolosclerosis, which features concentric, laminated 'onion-skin' thickening of the arteriolar walls and luminal narrowing.
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