Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Comparison is made with the next preceding similar study ___ ___ . Moderate cardiac enlargement persists and appearance of thoracic aorta is unchanged . There is a moderately improved inspirational effort with better aeration of the lung fields bilaterally in comparison with the previous examination . Less marked crowding of pulmonary vasculature and lesser degree of perivascular haze . The lateral pleural sinuses remain free and there is no evidence of pneumothorax in the apical area . No signs of any discrete local pulmonary parenchymal infiltrate on this portable AP single view chest examination .
    OUTPUT:
    
Improvement of pulmonary vasculature appearance related to successful dehydration measures during the latest one day examination interval . No evidence of acute parenchymal pneumonic infiltrates as can be excluded on single view examination .