Sarcoidosis is a multisystem inflammatory granulomatous disease of unknown etiology. Up to 55% of patients with systemic sarcoidosis have documented cardiac involvement.1 Albeit less common, cardiac manifestations can be the first clinical presentation of sarcoidosis. These include conduction disturbances, ventricular arrhythmias, heart failure, and sudden cardiac death, accounting for 13%–25% of sarcoidosis-related death.1 Initial diagnostic workup often requires comprehensive cardiac imaging, including echocardiography, cardiac magnetic resonance imaging (CMR), and 18F-FDG positron emission tomography (PET); nonetheless, the diagnosis of cardiac sarcoidosis remains challenging.
