Abstract
The incidence of bronchial cystadenoma is very rare, and it should be dirrerentiated from the common low-grade malignant tumors of the bronchus. A 69 year-old female under went right upper and middle lobectomy and concomitant mediastinal lymph node dissection for squamous cell carcinoma of the lung. The lesion was in S5. Histopathological findings of the specimen obtained the orifice of the right B3 revealed a bronchial cystadenoma. No direct continuity was noted between the bronchial cystadenoma and the carcinoma.
To date, only 17 cases of bronchial cystadenoma have been reported in the world literature and this case is the second one in Japan.
