Ventricular fibrillation as an initial manifestation of cardiac sarcoidosis

Abstract Cardiac sarcoidosis is a rare immunologically driven process seen in 2% to 5% of patients with systemic sarcoidosis. We present a 31-year-old woman who presented after a ventricular fibrillation cardiac arrest. A comprehensive diagnostic workup was unrevealing. Despite negative cardiac magnetic resonance imaging, positron emission tomography facilitated the diagnosis. This case illustrates both the limitations of the diagnostic workup of sarcoidosis and the usefulness of positron emission tomography in the early diagnosis of cardiac sarcoidosis.

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