“…The early recognition of DD is difficult in women since a number of extracardiac features, including skeletal myopathy, mental retardation, hepatic disorders, and retinal disease, only manifest in some patients ( 4 ). In men, Danon cardiomyopathy (DC) typically presents as hypertrophic cardiomyopathy (HCM) before progressing to dilated cardiomyopathy (DCM) ( 5 ). In female patients, however, HCM and DCM have a similar prevalence ( 5 ).…”