This ECG illustrates what some would call a non-ST-elevation M.I., but may also illustrate the limitations of a standard 12-Lead ECG. This female patient in her 60's presented to the Emergency Department with vague chest discomfort. She was cool and diaphoretic. She gave a history of having coronary artery stents placed in the past. On angiography in the cath lab, she was found to have two stents in her obtuse marginal artery which were occluded. Her case was lost to followup.