Figure 1.

A: A resting 12-lead electrocardiogram (ECG) showed sinus rhythm with new onset left bundle branch block and unremarkable coronary angiogram. B: Another resting 12-lead ECG showed 2:1 atrioventricular block with a normally conducted P-wave (first red arrowhead) to the ventricle, followed by a nonconducted P-wave, and then the following P-wave (third red arrowhead) conducted to the ventricle with a prolonged PR interval and left bundle branch block. This is a repetitive pattern. These nonspecific ECGs findings were the initial clinical manifestations of cardiac sarcoidosis in our patients with extracardiac biopsy-proven sarcoidosis and typical pattern for cardiac sarcoidosis on fluorodeoxyglucose positron emission tomography and cardiac magnetic resonance imaging studies.