Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates 3 cm above the carina . A right IJ central venous catheter is in unchanged position , terminating in the distal SVC . Previous perihilar opacities have substantially improved , most consistent with resolving edema . There is no appreciable pleural effusion or pneumothorax . The cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Substantial improvement of perihilar opacities , most consistent with resolving pulmonary edema .