Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular vascular sheath remains , but the pulmonary arterial catheter has been removed . Chest tubes have also been removed bilaterally . There is no pneumothorax or pleural effusion . Patchy retrocardiac opacity has improved . Streaky right basilar opacity is similar and suggests minor atelectasis . The patient is status post coronary artery bypass surgery .
    OUTPUT:
    
Improving left basilar atelectasis . Removal of chest tubes without evidence for pneumothorax .