What is the diagnosis of this ST elevation MI mimic?

69 y/o female with no significant PMH presents with intermittent atypical chest pain after her husband passed away.  An EKG, below, notes ST elevations.  Labs notable for troponin I of 8.  Patient is taken to the cath lab where she is noted to have clean coronaries but left ventricular apical akinesis and mildly decreased ejection fraction.  What is the diagnosis?  Scroll down for answer.

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Takotsubo cardiomyopathy.  This is a rare ACS mimic and nearly impossible to differentiate from the real deal -  ACS -  in the emergency department prior to cath.  Criteria for diagnosis include absence of obstructive coronary disease, transient left ventricular apical akinesis and new EKG abnormalities in the absence of another cause (head trauma, myocarditis, hypertrophic cardiomyopathy, etc).  Patients, with a preponderance females, often present after emotional or physical stress.   Pathophysiology is unclear.  Outcome is generally favorable with cardiac hypocontractility usually resolving in 2 - 4 weeks.


Source

Barker, S. et al.  "Electrocardiographic ST-segment elevation: Takotsubo cardiomyopathy versus ST-segment elevation myocardial infarction - A case series"  American Journal of Emergency Medicine.  2009.