English: Acute coronary syndrome (ACS). Urgent revascularization of 69-year-old black male with no known history of CAD. Wellens' Warning in cardiac cath lab. Tight, critical stenosis (i.e., lesion) in the proximal LAD (95%). Before and after images of PCI. Placement of bare-metal stent (BMS) instead of drug-eluting stent (DES) in a patient with carcinoma.