[Bulla Appearing and Rupturing after Right Upper Lobectomy, Causing a Significant Pulmonary Fistula:Report of a Case].

A 78-year-old man underwent thoracoscopic right upper lobectomy for lung adenocarcinoma in the right upper lobe. During surgery, a leak test did not reveal any air leakage, but after extubation, the patient coughed and air leaks appeared. After observation, the air leakage did not improve and subcutaneous emphysema was significant, so reoperation was performed the next day. During the reoperation, a bulla not seen the previous time was found in S6, and a hole was formed in the bulla, through which air leaked. The lesion was partially resected, and the absence of air leakage was confirmed, and the operation was completed. Thereafter he had air leaks again and underwent pleurodesis twice. The chest drain was removed on the 12th day after the second operation, and the patient was discharged on the 22nd day.