Cardiac involvement is found in approximately 5% of patients with sarcoidosis. The course of the disease is variable, ranging from benign arrhythmias to high-degree heart block or sudden death, and diagnosis is difficult. Endomyocardial biopsy can confirm the diagnosis but the diagnostic yield of the procedure is low because of the uneven distribution of the granulomatous process. Cardiac sarcoidosis should be presumed in patients with known sarcoidosis who develop arrhythmias, conduction disease, heart failure or ECG abnormalities. The authors present a case report and brief review of cardiac sarcoidosis.