Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are noted . Right IJ central venous catheter tip projects over the mid to lower SVC . Low lung volumes are seen with secondary crowding of the bronchovascular markings . Bilateral parenchymal opacities are noted , left greater than right . No visualized pneumothorax on this supine film . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
Right central venous catheter seen with tip projecting over the mid to lower SVC . No visualized pneumothorax . Low lung volumes with parenchymal process potentially in part due to atelectasis although superimposed infection or edema is possible .