Morgagni hernias are rare and comprise approximately 3% of the congenital diaphragmatic hernias that are observed in I in 4800 live births. A 50-year-old female patient who complained of nonspecific chest pain radiating to the right arm for approximately I year presented. Chest x-ray revealed a right-sided paracardiac mass diagnosed Morgagni hernia by computerized tomography of the thorax. Laparoscopic exploration showed that the retrosternal hernia was actually a bilateral one. After reducing the contents of the hernial sacs, the defects were closed as a single defect with hernia stapler starting from each end and an appropriate sized polyprolene mesh was closed over the repair site. The patient did not have any symptoms of recurrence after 3 months. Recent advances in video-endoscopic surgery made it possible to perform repairs of these hernias less traumatic and more comfortable to the patients than the conventional transabdominal or transtboracic methods.