Abstract
A 64-year-old woman had a bronchogenic cyst with all bronchial structures. CT showed this tumor had CT number 48.8H There was a pedicled cyst behind the descending aorta and on the left pulmonary artery. The cyst seemed to be inserted into the A-P window from the posterior side. Cystectomy was carried out by thoracotomy and the cyst was found to consist of a single cavity filled with darkgreen mucus. Pathologically this cyst had all bronchial structures (ciliated epithelium, bronchial gland, cartilage, smooth muscle).