Is this Myo-pericarditis? Or OMI with subsequent pericarditis? Does the angiogram always explain the ECG findings?

Conclusion: Although at 1st glance, it looked like the ECG picture in Figure-1 might be suggestive of acute pericarditis — on further inspection, there are significant ECG features against the diagnosis of acute uncomplicated pericarditis.As per the superb discussion above by Dr. Smith — evolution of this case (including the ECG picture on serial tracings) — are consistent with what probably occurred in today ' s case, namely the combination of acute OMI from LCx occlusion, followed by development of post-infarction regional pericarditis.
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs