Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . Distal trachea stent is partially visualized . Some streaky opacities along both bases likely represent subsegmental atelectasis . Otherwise , no focal parenchymal opacities are identified . There is no pleural effusion or pneumothorax . Mild cardiomegaly is redemonstrated and not significantly changed from prior . No bony abnormalities are identified .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Mild cardiomegaly .