A reconsidered diagnosis in an unresolving myocarditis—a case report

In this case, an interplay between Klinefelter's Syndrome and Muscular Dystrophy is demonstrated, potentially protecting our patient against a more aggressive Duchenne phenotype of muscular dystrophy. Upon non-resolution of symptoms, re-evaluating his presentation, investigations and taking into account his background multi-system medical history lead us to performing the genetic testing which revealed the correct diagnosis.