Left circumflex STEMI presenting as de Winter sign, an ECG Zebra that gives you the chills! A case report

de Winter ECG sign is an anterior ST-segment elevation myocardial infarction equivalent, which refers to an occlusion of the proximal left anterior descending (LAD) coronary artery with tall T waves and the absence of ST elevations in the precordial leads on the electrocardiogram (ECG). This sign is often under-recognized and not treated as an ST-segment elevation myocardial infarction which can increase the morbidity and mortality of such a life-threatening condition. Here we report a characteristic de Winter ECG sign involving left circumflex artery as culprit vessel, which was managed with PCI.