Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Cardiac silhouette size is mildly enlarged but unchanged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is detected . A VP shunt catheter is seen coursing along the right neck and right anterior chest wall , appearing to terminate in the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .