Fig. 1.

CMR data of a 25 year-old male performed at day 1 after the onset of an acute coronary-like syndrome (chest pain, ST segment alterations, mild troponin elevation). Black blood T2-weighted STIR CMR indicates the presence of segmental diffuse myocardial edema of the LV posterior and lateral walls representing 23 % of LV mass (top panel, arrows). Late gadolinium-enhanced CMR shows diffuse subepicardial nodular lesions in the posterolateral and lateral walls of the LV (11 % of LV mass) indicative of acute myocarditis (mid panel, arrows). Cine-MR at day 1 and 6 months (bottom panel) showed normal systolic global and segmental LV function (LV end-diastolic volume index 71 ml/m², LV ejection fraction 61 %; 69 ml/m² and 63 %, respectively). The patient did well and had no MACE during follow-up