2B)
Figure 2: Chest computerized tomography (CT) scans: 2A) initially
revealing a 22-mm button battery lodged in the proximal esophagus
associated with fistula to the left main bronchus; chronic
mediastinitis; right lung consolidation of the medial and inferior
lobes; left main bronchus stenosis, cystic and varicose bronchiectasis,
and complete lung parenchyma atelectasis, conditioning left mediastinal
deviation; and left nonfibrous pleural effusion. 2B) ten months after
fistula closure, CT exhibiting persistent fibrosis of the left lung
parenchyma, with multiple varicose bronchiectasis and left mediastinal
deviation; a right lung with apparently preserved parenchyma and
moderate expansion.