The first point is the terminology used to describe air leaks, ie, the differentiation between alveolar-pleural fistula (APF) and bronchopleural fistula (BPF). An APF is a communication between the pulmonary parenchyma distal to a segmental bronchus and the pleural space, while a BPF is a communication between a main stem, lobar, or segmental bronchus and the pleural space.2This distinction is not merely an academic one but is therapeutically important because the treatment for the two types of fistula is drastically different. BPFs have significant morbidity and almost always require reoperation or some type of surgical intervention. By contrast, an APF rarely, if ever, require reoperation. Most air leaks, even after elective pulmonary resection, are APFs and not BPFs, while air leaks resulting from parenchymal necrosis are invariably APFs.3 Hence, it would have been more appropriate to use the term APF while describing the persistent air leak in this patient.