Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA catheter has been removed . All lines and tubes are in appropriate positioning , and are unchanged compared to the prior radiograph . There continues to be opacification of the left hemithorax , representing left lower lobe collapse , unchanged compared to prior . The right basilar opacification likely represents atelectasis . The cardiomediastinal silhouette is stable . The pulmonary vasculature is normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Interval removal of the PA catheter , with unchanged positioning of all other lines and tubes . 2 . Persistent and unchanged left lower lobe collapse , and right lower lobe atelectasis .