[Segmentary bronchial atresia. One observation (author's transl)].

This study was done on a case of segmentary bronchial atresia of the left upper lobe. It is an exceptional congenital malformation, as only 47 observations have been so far recorded. Diagnosis was essentially radiological. The standard chest X ray and tomographies revealed an area of segmentary and lobar transparency surrounding a para-hilar lump. Diagnosis was confirmed by bronchography revealing the lack of injection into the atretic bronchus. Possible infectious complications and the evolution of bronchiectasis and obstructive emphysema justify the surgical exeresis.