Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi upright view of the chest . There has been interval advancement of the feeding tube now descending into the upper abdomen though the tip is excluded from view . Lung volumes are low limiting evaluation . Opacity in the right lung appear slightly increased from the prior exam though this may in part reflect patient position . There is also mild left basal opacity which could reflect atelectasis . The cardiomediastinal silhouette appears grossly unchanged though difficult to interpret . Bony structures are intact .
    OUTPUT:
    
Persistent opacity in the right lung and mild at the left lung base could reflect ongoing aspiration related pneumonia .