Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared the prior study , there has been interval improvement in pulmonary edema with prominent central pulmonary vascular engorgement seen currently without frank edema . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are grossly stable with the cardiac silhouette enlarged in the aorta tortuous .
    OUTPUT:
    
Prominent central pulmonary vascular engorgement . Previously seen pulmonary edema has significantly improved in the interval .