Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . Ventriculoperitoneal shunt catheter courses along the right lateral aspect of the neck and terminates outside the field of view . There is a focus of subsegmental atelectasis in the left lung base . The lungs are otherwise clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
No acute cardiopulmonary process .