[Unilateral pulmonary edema, pneumopericardium and bronchial cancer (author's transl)].

Carcinoma of the bronchus was detected following the onset of cardiac rhythm disorders, and a pneumopericardium with associated, radiologically detected, unilateral pulmonary edema. The tumor extended mainly around the bronchus and in the mediastinum, and a bronchopericardial fistula was present together with invasion of the left auricle and pulmonary veins. Pneumopericardium is a rare lesion and it is exceptional to observe it during the course of bronchial cancer. The relationships between unilateral interstitial edema and tumoral obstruction of the ipsilateral pulmonary veins are discussed.