Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes result in bronchovascular crowding . Bibasilar atelectasis , left more than right , is similar to ___ . There is no consolidation , pleural effusion or pneumothorax . Mild cardiomegaly is unchanged . Mediastinal silhouette is stable .
    OUTPUT:
    
No pneumonia , edema , or effusion .