Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Right IJ dialysis catheter again noted with tip in the low SVC . Lung volumes are low . Lung volumes are low limiting assessment . There is mild bibasilar atelectasis . No focal consolidation is seen . No large effusion or pneumothorax . Cardiomediastinal silhouette appears normal . Bony structures appear intact .
    OUTPUT:
    
Mild bibasilar atelectasis . No convincing evidence for pneumonia .