Cardiac involvement is the most important prognostic factor in eosinophilic granulomatosis with polyangiitis (Churg–Strauss syndrome). We report a case of Churg–Strauss syndrome in 65-year-old women masquerading as a non-ST elevation myocardial infarction. She had chest discomfort, dyspnea and ST depression, high troponin level and so myocardial infarction was diagnosed. She had had asthma for 4 years but had no eosinophilia in peripheral blood and lesions in the lungs at the time of the first hospitalization. Her skin was clean without rashes. 3 months later she was hospitalized again having pulmonary infiltrates. Laboratory tests revealed that eosinophil was significantly increased. Cardiac involvement in a pathological process led to death. Histological examination of heart and lungs showed necrotic coronary vasculitis, granulomas and perivascular eosinophilic infiltrates in myocardium, endocardium, pericardium and pulmonary eosinophilic infiltrates.
Churg–Strauss syndrome, hypereosinophilia, coronary vasculitis, cardiomyopath
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