Suspected hypersensitivity reaction following drug-eluting stent implantation. Novel insights with optical coherence tomography.

A 66-year-old woman who previously underwent coronary artery bypass surgery was admitted due to anginal symptoms. Coronary angiography (CAG) revealed a severe stenosis of the right coronary artery at the anastomotic site of a saphenous vein graft (SVG) and a residual stenosis of the posterior