Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette and hilar contours are normal . Lung volumes are low but otherwise clear . There is no pleural effusion or pneumothorax . Left subclavian infusion port is unchanged in position with the tip projecting over the low SVC .
    OUTPUT:
    
Normal chest radiograph without evidence of pneumonia .