Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is borderline enlarged . Mediastinal and hilar contours are grossly unremarkable . Pulmonary vasculature is not engorged . Patchy bibasilar opacities likely reflect atelectasis in the setting of low lung volumes . No focal consolidation , pleural effusion or pneumothorax is present . A percutaneous catheter is seen within the upper abdomen on the lateral view . No subdiaphragmatic air is seen .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .