Chest CT scans of preoperative and postoperative. A: A chest CT scan showed a 20 × 25 × 20 mm mass on the right middle lobe as well as an amount of pleural effusion on admission. B: An emergent chest CT scan showed a huge gas cavity and liquid located in the up right chest cavity.
Li et al. Diagnostic Pathology 2013 8:202 doi:10.1186/1746-1596-8-202