Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable supine AP image of the chest . The right IJ central line has been pulled back in the interval and now terminates in the superior direction junction . The lungs are well expanded . There has been interval mild increased cephalization of the pulmonary vessels , which may be partly or wholly due to supine positioning , making it difficult to evaluate for pulmonary edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
1 . Right IJ central line terminates in the superior cavoatrial junction . 2 . Interval mild increased cephalization of the pulmonary vessels , which may be partly or wholly due to supine positioning , making it difficult to evaluate for pulmonary edema .