Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . In comparison to the prior study , there is increased moderate - to - large left pleural effusion and adjacent compressive atelectasis . There is also increased mild pulmonary interstitial edema . The left heart border is obscured by the large effusion ; however , the heart appears enlarged . Mediastinal contour is otherwise unremarkable . No pneumothorax . Degenerative changes are present in the spine .
    OUTPUT:
    
Cardiomegaly , mild interstitial pulmonary edema , and moderate - to - large left pleural effusion have increased compared to the prior study .