[Intrapericardial bronchogenic cyst--a report of two surgical cases].

Two cases of intrapericardial bronchogenic cyst are reported. Case 1 was a 58-year-old man with a complaint of exertional dyspnea. A chest X-ray film showed a right hilar mass shadow. Echocardiographically the mass showed cystic pattern in the pericardium. A pulmonary angiogram revealed a mass displacing the right pulmonary artery superiolaterally and left atrium and pulmonary vein inferiorly. The preoperative diagnosis was intrapericardial cyst. Subtotal resection of intrapericardial cyst was performed via right thoracotomy. Histological diagnosis was bronchogenic cyst. The postoperative course was uneventful. Case 2 was a 41-year-old man. A displacement of the esophagus and duodenal ulcer was pointed out in the upper gastrointestinal series. A chest X-ray film showed a right hilar mass shadow. Since echocardiogram and pulmonary angiogram revealed similar findings to those in case 1, intrapericardial bronchogenic cyst was suspected preoperatively. Complete resection of the intrapericardial cyst was made via right thoracotomy. Histological diagnosis was bronchogenic cyst. The postoperative course was uneventful.