A Pathogenic Galactosidase A Mutation Coexisting With an MYBPC3 Mutation in a Female Patient With Hypertrophic Cardiomyopathy

Can J Cardiol. 2020 Sep;36(9):1554.e1-1554.e3. doi: 10.1016/j.cjca.2020.04.008. Epub 2020 Apr 14.

Abstract

The coexistence of GLA (Pro259Ser, c.775C>T) and MYBPC3 (c.1351+2T>C) mutations was found in a female patient with hypertrophic cardiomyopathy. Histology documented abundant vacuolisation with osmiophilic lamellar bodies and positive Gb3 immunohistochemistry. In the presence of a hypertrophic cardiomyopathy phenotype, the systematic search for unusual findings is mandatory to rule out a phenocopy.

Publication types

  • Case Reports

MeSH terms

  • Biopsy
  • Cardiomyopathy, Hypertrophic / diagnosis
  • Cardiomyopathy, Hypertrophic / genetics*
  • Cardiomyopathy, Hypertrophic / metabolism
  • Carrier Proteins / genetics*
  • DNA / genetics*
  • DNA Mutational Analysis
  • Echocardiography
  • Female
  • Galactosidases / genetics*
  • Galactosidases / metabolism
  • Genetic Predisposition to Disease*
  • Humans
  • Middle Aged
  • Mutation*
  • Myocardium / metabolism*
  • Myocardium / pathology
  • Myosins
  • Pedigree
  • Phenotype

Substances

  • Carrier Proteins
  • myosin-binding protein C
  • DNA
  • Galactosidases
  • Myosins