Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is normal in size . The hilar and mediastinal contours are within normal limits . There is mild atelectasis at the right lung base . No definite focal consolidation concerning for pneumonia is identified . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .