Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion , or pneumothorax . Lung volumes are low , likely due to recent procedure . There are linear opacities at the right base , likely atelectasis . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
No pneumothorax . Atelectasis at the right base and low lung volumes .