Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest obtained with patient in semi-upright position , is analyzed in direct comparison with the next preceding similar study dated ___ . Previously existing marked pulmonary congestive pattern almost reaching edema has markedly improved . Presently , there are no signs of new acute parenchymal infiltrates and the lateral pleural sinuses remain free . There is moderate degree of right - sided diaphragm elevation , cause unknown . No pneumothorax is seen .
    OUTPUT:
    
Improvement of congestive pattern , new pulmonary abnormalities .