“…Left‐ventricular non‐compaction (LVNC) is characterized by abnormal trabeculation of the LV apex with deep intratrabecular recesses, thought to be due to an arrest of the final stage of embryologic myocardial morphogenesis (myocardial compaction) [Maron et al, ; Towbin, ; Ting et al, ; Towbin et al, ]. LVNC is a heterogeneous disorder with considerable phenotypic overlap between other types of cardiomyopathy, including dilated cardiomyopathy and hypertrophic cardiomyopathy (HCM) [Hoedemaekers et al, ; Jefferies et al, ; Lorca et al, ; Towbin et al, ]. The clinical presentation of LVNC can also be quite variable, including LV dilation and dysfunction, arrhythmias, progressive heart failure, stroke, and sudden death, although patients with isolated LVNC and normal LV size and function tend to do well [Jefferies et al, ; Towbin et al, ].…”