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Old 06-10-2014
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Question Does renal artery stenosis cause polycythemia?

Hi everyone,

As I understand, Renal artery stenosis causes secondary polycythemia & it makes sense.

However, UWorld (Question ID: 1901) clearly states that "Renal artery stenosis is not a cause of secondary polycythemia!"

What do you think ?
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Old 06-10-2014
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As far as I know renal artery stenosis although it can cause it, isn't actually the main nor the most common cause of polycythemia, it's rather rare; unless it's severe or bilateral and in the setting of a hypertensive patient with other comorbilities.

Why? well, I guess it's because the EPO secretion isn't as high as with other stimuli like with anemia (causing hypoxemia which is a main cause) or severe dehydration. IMO.

I'd say it CAN cause it but don't put it first on the list.

Here are a couple of articles that I remember reading about it, reporting cases about the matter.
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