TNNI3 and myocarditis: While performing a whole-exome sequencing analysis on a cohort of 42 pediatric patients, who were selected on the basis of acute myocarditis symptoms and histological evidence of inflammatory infiltrates within the myocardium, Belkaya et al. [31] found a homozygous c.150G>A p.(Lys50=) apparently synonymous TNNI3 variant in one affected individual.