Cardiac sarcoidosis preceded by sick sinus syndrome presenting as biventricular involvement and intracardiac giant thrombus: a case report.

While conduction abnormalities, such as right bundle brunch block and atrioventricular block, are common clinical manifestations, SSS is rarely reported as a primary manifestation of cardiac sarcoidosis. Thus, clinicians should ensure that sufficient investigations are carried out when diagnosing idiopathic SSS.