Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and Tubes : Right PICC , left upper chest wall pacemaker are unchanged in position . There has been interval removal of a Swan - Ganz catheter . Lungs : Persistent low lung volumes with mild pulmonary edema and left basilar atelectasis , unchanged . Pleura : There is no pleural effusion or pneumothorax Mediastinum : Persistent cardiomegaly , unchanged . Bony thorax : No interval change .
    OUTPUT:
    
Mild pulmonary edema , cardiomegaly and left basilar atelectasis remain unchanged . Interval removal of Swan - Ganz catheter .