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TMEM43 arrhythmogenic cardiomyopathy. Four-chamber 1.5T cardiac cine steady-state precession MRI clip of a male patient between 30–39 years of age (exact age not provided due to potential reidentification risk) with a TMEM43 variant of unknown significance (p.Gly280Glu) with palpitations and premature ventricular beats on Holter. The left ventricle is dilated with a regional wall motion abnormality corresponding to an area of subepicardial chemical shift artifact along the lateral left ventricular wall.