Epicardial cyst originating from right ventricle

We Cystic structures within the pericardial cavity are rare. They are divided into epicardial and pericardial variants. Pericardial and epicardial cysts rarely cause symptoms. Pericardial cysts occur at the rate of 1 person per 100,000.1Complete surgical excision is recommended when these cysts are detected. If cysts compress surrounding vital structures, cardiopulmonary bypass (CPB) should also be considered.Epicardial cysts originating directly from the epicardium are seen very rarely. This report describes a case of epicardial cyst in size of 20 cm radially with acute cardiac failurewith no previous history of cardiac diseases who was transferred to our hospital in the department of cardio-thoracic and vascular surgery because of hemodynamic instability.Cases of pericardial cyst have been reported by many authors, but the incidence of epicardial cyst originating directly from the epicardium in the pericardial cavity is extremely rare. Herein, we report a case of epicardial cyst that was completely and successful resected without ECC.