Hypertrophic cardiomyopathy secondary to deficiency in lysosome-associated membrane protein-2: A case report.

Background: Danon disease (DD), in which mutations in the X-linked lysosome-associated membrane protein-2 (LAMP-2) gene result in hypertrophic cardiomyopathy, is a rare disease, reported primarily in small samples or cases. However, with the development of cardiac magnetic resonance imaging and genetic technology in recent years, the number of reports has increased.

Case Summary: We report a case of DD in an adolescent male patient, confirmed by genetic testing.