“…After a pleuropneumonectomy, fluid accumulation has been reported to be very rapid, and at tim es, to have compromised the function of the remaining lung. 39 Christiansen and colleagues 37 also noted that in 17% of their patients, the amount of fluid in the pleural space decreased at one point during the observation period. When this occurred in conjunction with a shift in the mediastinum to the side opposite to the pneumonectomy, it was diagnostic of a bronchopleural fistula.…”