A Rare Case of Primary Meningococcal Myopericarditis in a 71
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Introduction
Acute pericarditis is a common disease with many possible causes. Idiopathic etiology, that is, viral or immune mediated, is the most common cause, at least in the developed countries. Since the introduction of antibiotics, bacteria are only rarely (<1% of all cases) the cause of pericarditis [1, 2], causing purulent pericardial effusion. In this report we describe a case of primary meningococcal myopericarditis (defined as pericarditis with myocardial involvement), which illustrates the importance of early recognition given the potential for rapid disease progression.

Case Presentation
A previously healthy 71-year-old male presented to the cardiac care unit with intermittent chest pain over the previous 24 hours and worsening of discomfort and pain by lying on his left side. Other symptoms consisted of pleuritic pain between the shoulders, a sore throat, and several days of low-grade fever. On presentation, he was not acutely ill despite a temperature of 38.8°C. Clinical examination of heart and lungs showed no abnormalities. He had one painfully enlarged lymph node on the right side of his neck. ECG showed sinus rhythm with normal axis and conduction times and widespread ST-elevation (Figure 1(a)). Laboratory findings showed troponin-T of 22?ng/l (normal value < 14?ng/l), CRP of 310?mg/l, and leukocytosis (21.1 × 10e9/l) with a left shift (19 × 10e9/l granulocytes). A chest X-ray showed no abnormalities....

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5149593/
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