Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right PICC terminates in the low SVC tracheostomy tube is in adequate position . VP shunt traverses the right hemithorax . Bibasilar opacities may reflect atelectasis versus pneumonia . Findings are more pronounced on the left than the right . Mid upper lungs appear well aerated . No convincing evidence for effusion or pneumothorax on this supine radiograph . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Bibasilar opacities may reflect atelectasis versus pneumonia , left greater than right .