[A surgical case of congenital bronchial atresia with right-sided descending aorta]

A 35-year-old man visited his physician complaining of fever and a productive cough. He was referred to our hospital because of an abnormal chest X-ray film, which showed a mass-like lesion with air fluid level in the left lower lobe. He was then treated for a lung abscess with panipenem/betamipron (PAPM/BP). Anatomical abnormality was suspected because he had adverse reactions to antibiotics, and secondly the lesion was located near the left hilum. Furthermore, another abnormality of the right-sided descending aorta, was also detected by chest CT. Congenital bronchial atresia was suspected after bronchoscopy and aortic angiography. Left lower lobectomy was performed because of the anatomical abnormality and limited benefit of antibiotics. A histological specimen revealed bronchial atresia of the left B, with a bronchocele on its distal side, and pneumonia in the left S area. We report a rare case of congenital bronchial atresia with right-sided descending aorta.