alexa Eosinophilic myocarditis manifesting as myocardial infarction: early diagnosis and successful treatment.
Pathology

Pathology

Journal of Medical & Surgical Pathology

Author(s): Galiuto L, EnriquezSarano M, Reeder GS, Tazelaar HD, Li JT,

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Abstract OBJECTIVE: To report a case of eosinophilic myocarditis with remarkable initial clinical manifestations and outcome. MATERIAL AND METHODS: A 67-year-old woman with hypertension and a history of asthma and drug hypersensitivity was referred to our institution with a diagnosis of acute myocardial infarction on the basis of severe chest pain, ST elevation on an electrocardiogram, and a slight increase in cardiac enzymes. Further diagnostic studies were performed. RESULTS: Echocardiography disclosed left ventricular dysfunction in conjunction with apical asynergy, thinning, and thrombus. The eosinophil count in the peripheral blood was increased only slightly. Coronary angiography showed normal arteries and prompted the performance of endomyocardial biopsy, which revealed active eosinophilic myocarditis. After corticosteroid therapy, global and regional left ventricular function returned to normal. CONCLUSION: This unusual clinical picture and outcome demonstrate that eosinophilic myocarditis may simulate acute myocardial infarction and should be considered in patients with a history of allergies or acute left ventricular dysfunction, even in the absence of pronounced eosinophilia in the peripheral blood. With appropriate medical therapy, recovery for these patients can be complete.
This article was published in Mayo Clin Proc and referenced in Journal of Medical & Surgical Pathology

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