Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient semi-upright position . Comparison is made with the next preceding similar study of ___ . There is now a significant improvement of the previously existing general perivascular haze in the pulmonary circulation . Still congestive pattern on the bases with bilateral pleural effusions is present but no new discrete pulmonary parenchymal infiltrates of pneumonic character have developed . No pneumothorax in the apical area . Unchanged position of previously described left subclavian central venous line .
    OUTPUT:
    
Moderate improvement of pulmonary vascular congestion in this patient with CHF . Evidence of bilateral pleural effusions persists , no pneumothorax or new acute infiltrates .