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A: Focal stenosis of 90% in the distal RCA, which was determined to be a result of vasospasm. B: Vasospasm in the distal RCA with guidewire introduction. C: Diffuse vasospasm with guidewire in place, expanding from the distal to the proximal RCA. D: Vasospasm resolved with intracoronary nitroglycerin and intracoronary nicardipine.
RCA - Right Coronary Artery; LAO - Left Anterior Oblique
