Inflammation of both the heart muscle and the protective membrane surrounding it (the pericardium).
From Greek 'kardia' (heart) + 'peri' (around) + 'kardia' (heart) + '-itis' (inflammation). This compound term precisely describes a dual inflammation.
Your heart sits inside a protective double-walled sac like a fist in a balloon—when both the heart and that sac become inflamed, it's cardiopericarditis, which is why it's so painful and dangerous.
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