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Radiology General f509f5d9

Most important sign in hemodynamically significant renal artery stenosis

A
Presence of collateral vessels
B
Elevated renin level in I/L renal vein ≥ 1.5 : 1
C
Transstenotic pressure gradient ≥ 40 mm Hg
D
Decrease in renal size
High-Yield Explanation
All are signs of renal artery stenosis. Most  important - Presence of collateral vessels.

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