Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PleurX projects at right lung base ; small pleural effusion have slightly improved . Left lower lung atelectasis has almost completely resolved . Mild pulmonary edema has also improved . Moderate cardiomegaly is stable . There is no pneumothorax .
    OUTPUT:
    
Small right pleural effusion which contains a PleurX has slightly improved since previous exam .