Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain hyperinflated with coarsened lung markings , consistent with chronic obstructive pulmonary disease / pulmonary emphysema . Previously seen nodular opacity projecting over the left lower lung is less conspicuous on the current study as compared to the prior and may have represented a nipple shadow . No new focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable , with the descending aorta quite tortuous . . Left base atelectasis / scarring is re - demonstrated .
    OUTPUT:
    
No acute cardiopulmonary process .