Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are relatively hyperinflated with the cardiac silhouette appearing slightly smaller as compared the prior study . Mediastinal contours unremarkable . No overt pulmonary edema . No focal consolidation , large pleural effusion or pneumothorax . Subtle streaky left base retrocardiac opacity is likely atelectasis and overlap of vascular structures . Right - sided central venous catheter terminates in the low SVC . Tracheostomy tube is re - demonstrated .
    OUTPUT:
    
No definite acute cardiopulmonary process .