Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval extubation . Heterogeneous opacities in the right lower lung are not significantly changed , seen to represent pneumonia on prior CT from ___ . A new nodular opacity in the right mid - to - upper lung could reflect a new focus of infection . There is subsegmental left retrocardiac atelectasis , as before . No definite pleural effusions are seen on these radiographs , although small bilateral pleural effusion , right greater than left , are present on prior CT from ___ . The heart size is normal . The mediastinal contours are normal . There is no pneumothorax . Previously seen left lower lung , band - like atelectasis has resolved .
    OUTPUT:
    
1 . Persistent infection in the right lower lobe with a possible new focus of infection in the right mid - to - upper lung . 2 . Interval extubation .