LEOPARD syndrome in an infant with severe hypertrophic cardiomyopathy and PTPN11 mutation

Area of Science:

• Genetics
• Cardiology
• Molecular Biology

Background:

• LEOPARD syndrome is a rare genetic disorder.
• Mutations in the PTPN11 gene are linked to LEOPARD syndrome.
• PTPN11 gene mutations, particularly in exon 13, are associated with severe hypertrophic cardiomyopathy (HCM).

Observation:

• This study reports on an infant diagnosed with LEOPARD syndrome.
• The infant presented with early-onset, severe biventricular obstructive hypertrophic cardiomyopathy (HCM).
• An unusual mutation in exon 13 of the PTPN11 gene was identified in this patient.

Findings:

• The identified PTPN11 gene mutation in exon 13 showed a clear genotype-phenotype correlation.
• This specific mutation contributed to the severe, rapidly progressive HCM observed in the infant.
• The findings highlight the critical role of PTPN11 exon 13 in cardiac development and disease.

Implications:

• This case expands the understanding of PTPN11 mutations in LEOPARD syndrome.
• It emphasizes the importance of genetic testing for early diagnosis and management of HCM in infants.
• Further research into genotype-phenotype correlations can improve personalized medicine approaches for rare genetic cardiomyopathies.