Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , which leads to bronchovascular crowding . No focal consolidation is identified . The cardiomediastinal silhouette and hilar contours are normal . There is no pleural effusion or pneumothorax . A ventriculoperitoneal catheter is partially visualized .
    OUTPUT:
    
No acute cardiopulmonary process .