Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and Tubes : Left - sided chest tube projects over the left lower zone . EKG leads overlie the chest and upper abdomen . Lungs : Low lung volumes with bibasilar linear atelectasis . Pleura : There is no pleural effusion or pneumothorax Mediastinum : Mild cardiomegaly and aortic knuckle calcification . Bony thorax : Unremarkable
    OUTPUT:
    
Low lung volumes with mild bibasilar linear atelectasis , no pleural effusion or pneumothorax . Left chest tube projects over the left lower zone .