3 months prior to presentation	Dyspnoea and chest tightness on exertion.
Day 1	Presented to our emergency room for evaluation. Troponin mildly elevated and B-type natriuretic peptide significantly elevated. Echocardiography revealed severe left ventricular dysfunction and right heart catheterization revealed severely reduced cardiac output. Started on milrinone and nitroprusside with improvement in haemodynamics. Differential diagnosis included viral myocarditis, eosinophilic myocarditis, giant cell myocarditis (GCM), and autoimmune myocarditis.
Day 5	Endomyocardial biopsy was consistent with GCM.
Day16	Listed for heart transplant due to persistent low-output heart failure requiring milrinone.
Day 31	Progressive diuretic resistance and persistent cardiogenic shock despite higher doses of milrinone prompted insertion of an intra-aortic balloon pump.
Day 38	Underwent orthotopic heart transplant.