Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The heart remains moderately enlarged . There has been interval improvement in pulmonary edema , though mild edema persists . There are tiny bilateral pleural effusions , not significantly changed . No pneumothorax . Mediastinal contour is stable . Bony structures are intact .
    OUTPUT:
    
Improved though persistent mild pulmonary edema , cardiomegaly .