Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low with lower lung platelike atelectasis noted . A VP shunt catheter courses over the right chest anteriorly and extends into the abdomen . Cardiomediastinal silhouette is essentially stable with an unfolded thoracic aorta . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Bibasilar atelectasis . VP shunt courses over the right chest wall . No evidence of pneumonia .