Acute myocarditis secondary to Campylobacter jejuni enterocolitis.

Myocarditis is a rare condition that can mimic an acute coronary syndrome (ACS). We present the case of a 24-year-old male with Noonan syndrome who presented with a diarrhoeal pro-dromal illness, acute onset chest pain, elevated cardiac biomarkers and an abnormal ECG with ST elevation in the absence of obstructive coronary artery disease. The patient had acute myocarditis secondary to Campylobacter jejuni enterocolitis. Infective myocarditis is most commonly due to a viral infection. Myocarditis is very rarely due to a bacterial infection with only isolated reports of myocarditis induced by Campylobacter jejuni infection. At follow-up he remains well. Myocarditis should be considered in all patients presenting with acute onset chest pain and elevated cardiac biomarkers.