Fig. 1

Computed tomography (CT) results of the Olsenella uli-induced pneumonia. Considering the day when the patient was transferred to our hospital as the first day, A, B CT on the second day(6/10/2021) showed bilateral pneumonia, pyogenic necrosis in the right lower lobe of the lung, encapsulated pyothorax in the right chest and bilateral emphysema, as the arrow indicated; C, D CT on the tenth day(6/19/2021), the arrows showed worsening bilateral pneumonia and emerging bilateral pleural effusion compared with the second day; E, F CT on the twentieth day (6/29/2021), arrows showed improvement in the bilateral pneumonia and left pleural effusion in comparison with the tenth day