Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are underinflated . There is no evidence of pneumothorax , and no overt pulmonary edema or pleural effusion . The cardiomediastinal silhouette is unremarkable . No focal opacities are seen . Bilateral degenerative changes are seen at the glenohumeral joints .
    OUTPUT:
    
No acute cardiopulmonary process .