Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is borderline enlarged . Mediastinal and hilar contours are unchanged , and the pulmonary vasculature is normal . Lungs remain hyperinflated with flattening of the diaphragms compatible with COPD . Streaky opacities within the left lower lobe likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .