Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is been interval placement of the right IJ central venous catheter with the tip terminating in the mid SVC . An endotracheal tube is unchanged in position with the tip terminating 5 cm above the carina . A nasogastric tube is seen coursing below the diaphragm and out of few on this image . The inspiratory lung volumes are improved from the most recent prior study . Bilateral perihilar opacities are redemonstrated . No significant pleural effusion or pneumothorax is detected . The heart is top normal in size with calcification of the mitral valve annulus again noted . The mediastinal contours are within normal limits and unchanged . There multilevel degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
1 . Right IJ central venous catheter with tip in the mid SVC . 2 . Bilateral perihilar opacities may represent centralized pulmonary edema or , less likely , bilateral pneumonia .