Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette and hila are normal . There is no pleural effusion and no pneumothorax . The lung volumes are low ; particularly in that context , faint basilar opacities are likely due to minor atelectasis .
    OUTPUT:
    
No definite evidence of acute cardiothoracic process . Patchy opacities likely attributable to minor atelectasis .