In fibromuscular dysplasia, which artery is most commonly affected?

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Multiple Choice

In fibromuscular dysplasia, which artery is most commonly affected?

Explanation:
Fibromuscular dysplasia most commonly affects the renal arteries, which is why renovascular hypertension is a classic clue. This noninflammatory, nonatherosclerotic arteriopathy tends to involve medium-sized vessels, with the kidneys being the most frequent site. Carotid arteries can also be involved, sometimes visible as a string-of-beads pattern on angiography, but the renal arteries have the highest frequency. Involvement of brachial or coronary arteries occurs far less often, so the renal arteries are the best answer.

Fibromuscular dysplasia most commonly affects the renal arteries, which is why renovascular hypertension is a classic clue. This noninflammatory, nonatherosclerotic arteriopathy tends to involve medium-sized vessels, with the kidneys being the most frequent site. Carotid arteries can also be involved, sometimes visible as a string-of-beads pattern on angiography, but the renal arteries have the highest frequency. Involvement of brachial or coronary arteries occurs far less often, so the renal arteries are the best answer.

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