Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison last chest radiograph from ___ , right pleural effusion and adjacent right basilar atelectasis are moderately improved . No pneumothorax . Small left pleural effusion and adjacent left retrocardiac atelectasis are minimally improved . There is mild pulmonary vascular congestion without overt pulmonary edema . No new focal consolidation . Mediastinal and hilar contours are stable . Moderate cardiomegaly is unchanged .
    OUTPUT:
    
Moderately improved right pleural effusion and adjacent right basilar atelectasis . No pneumothorax .