Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are slightly underinflated with increased density at the bases on the frontal projection , corresponding to overlying soft tissue . Cardiomediastinal silhouette is normal . No focal consolidation , pleural effusion , or pneumothorax . Osseous structures are intact .
    OUTPUT:
    
No acute cardiopulmonary process .