Case1: 11 year old female

DiseaseAssertion: hypertrophic cardiomyopathy, restrictive cardiomyopathy

FamilyInfo: twin sister carrier identical mutation, both sisters expired, no family history of cardiomyopathy

ParentalTesting: sanger sequencing

CasePresentingHPOs:HP:0001629, HP:0001640, HP:0034314,HP:0002098, HP:0001723

CaseHPOFreeText:bilateral atrial dilation with mid ventricular hypertrophy, accelerated cardiac sound, liver palpable 2cm below costal margin, cold extremities, cardiac condition was New York Heart Association class (NYHA) III.

CaseNotHPOs: NR

CaseNotHPOFreeText: no gallop rhythm, no murmur, no blood test abnormalities, no metabolic disorders

CasePreviousTesting: cardiac catheterization, cardiac magnetic resonance, echocardiography, Chest Xray, electrocardiography,

Genotyping Method: sanger sequencing

FunctionalAnalysis: NR

Variant: TNNI3 c.574 C>T p.Arg192Cys

ClinVar: 165510

CAID: CA021951

gnomAD:NR

Case 2: 15 year old female

DiseaseAssertion: restrictive cardiomyopathy, hypertrophic cardiomyopathy

FamilyInfo: twin sister carrier identical mutation, both sisters expired, no family history of cardiomyopathy

ParentalTesting: Sanger Sequencing

CasePresentingHPOs:HP:0002875, HP:0001723

CaseHPOFreeText: Abnormal ECG, LV hypertrophy, enlargement of both atria, high LVEF levels, accelerated cardiac sound, liver was palpable 3 cm, extremities were warm, and cardiac condition was NYHA II.

CaseNotHPOs:NR

CaseNotHPOFreeText: no gallop rhythm, no murmur, no blood test abnormalities, no metabolic disorders

CasePreviousTesting: cardiac catheterization, cardiac auscultation, myocardial disarray with myocyte hypertrophy

Genotyping Method: Sanger sequencing

FunctionalAnalysis: NR

Variant: TNNI3 c.574 C>T p.Arg192Cys

ClinVar: 165510

CAID: CA021951

gnomAD:NR