Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . Lungs are clear . The heart is mild - to - moderately enlarged , but unchanged compared with prior exam . There is no hilar retraction or any other hilar abnormality . No overt pulmonary edema is seen . No pleural effusion or pneumothorax . Bilateral moderate degenerative changes of the shoulder joints are noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality .