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A 65-year-old male was admitted to our hospital because of bilateral giant bullae and right side pneumothorax. He had had a myocardial infarction and had been receiving medications. Considering his age, ischemic heart disease and hypertension, we excised the bullae in two operations. The first operation was open chest bullectomy of a giant bulla and small bulla on the right side. After this procedure, his clinical course was uneventful. In the second operation, thoracoscopic excision of the left side giant bulla was performed using only one endoscopic stapler by rotating each side of the bulla and making a clear excision line between the bulla and normal lung. His post operative course was excellent and he was discharged from our hospital on the 15th day after the second operation.

Nonpenetrating blunt trauma causing pulmonary pseudocyst is very rare. A 25-year-old young male suffered from motor vehicle accident. He was transferred to our hospital with severe hemoptysis. Immediately he was intubated and kept under mechanical ventilation. A chest X-ray film and CT-scan revealed a marked cavity lesion surrounded by an extensive infiltrate and alveolar air consolidation. Ordinary, it has benign clinical courses by conservative management. However, he was suffered massive and continuous bleeding from endobronchial tube. Therefore, one lung ventilation using a uni-vent tube blocker was performed. After twelve hours blockade, the cavity lesion was enlarged and trans-bronchial bleeding was continued severely. Emergency right lower lobectomy was carried out successfully.

We report a successful surgical treatment of acute dissecting aneurysm of the ascending aorta associated with annuloaortic ectasia. The patient was a 29-year-old male, who was admitted to the hospital 5 hours after the onset of anterior chest pain. Aortography revealed acute dissection of the ascending aorta (DeBakery type I) with AAE. The intimal tear surrounding the right coronary ostium was found. The procedure between the right coronary artery and aorta (replaced artificial graft) using saphenous vein graft was also required in addition to Bentall's operation. Postoperative studies revealed disappearance of the dissection, patency of the bypass graft. The postoperative course was uneventful and the patient is in active life two years after operation.

A 31-year-old male was diagnosed to have malignant thymoma with superior vena cava occlusion. At operation, we performed extended resection of tumor and superior vena cava, and replacement with ringed PTFE graft. Histological diagnosis was nodular sclerotic type of Hodgkin's disease of thymus. He received radiation with Liniac and chemotherapy post operatively, and post operative venography revealed graft patent. He is doing well 3 years after surgery.

A 11-year-old boy with supravalvular aortic stenosis was treated by extended aortoplasty (Doty's operation) with excellent results. The extended aortoplasty provided satisfactory relief of aortic stenosis and improved function of the aortic valve.

We present two patients who underwent the omental pedicle flap method for bronchopleural fistula. The first case was a 61-year-old man who developed empyema with bronchial fistula due to recurrent tuberculosis resisted to chemotherapy. He underwent complete muscle and omental flap closure of empyema space. The second case was a 63-year-old man who underwent pneumonectomy for adenocarcinoma of the lung. About two weeks after the operation, a bronchopleural fistula developed at the bronchial stump. He underwent complete omental flap closure of fistula. They are doing well 18 and 9 months following operation, respectively. The omental pedicle flap method is clinically useful as a closure method for bronchopleural fistula because of excellent blood supply of the omentum.