Hypertrophic cardiomyopathy (HCM) is a common but an underdiagnosed condition. Fasciculoventricular bypass tract (FVBT) is rare. Concomitant presence of both conditions is well described in Danon disease. We report a case of familial HCM with FVBT linked to a heterozygous pathogenic variant, c.655G>C (p.Val219Leu), in the cardiac myosin binding protein C3 (MYBPC3) gene. (Level of Difficulty: Advanced.).
Keywords: CMR, cardiac magnetic resonance; Danon disease; ECG, electrocardiogram; FVBT, fasciculoventricular bypass tract; HCM, hypertrophic cardiomyopathy; ICD, implantable cardioverter-defibrillator; LAMP-2, lysosome-associated membrane protein 2; MYBPC3, cardiac myosin binding protein C3; NSVT, nonsustained ventricular tachycardia; WPW, Wolff-Parkinson-White syndrome; accessory pathway; familial; hypertrophic cardiomyopathy.
© 2022 The Authors.