Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is moderately enlarged . The aorta is tortuous . Small to moderate - sized hiatal hernia appears to be present . The pulmonary vascularity is not engorged . Linear opacity within the left lower lobe is likely subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . No acute osseous abnormalities are present .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Subsegmental left lower lobe atelectasis . Small - to - moderate sized hiatal hernia .