Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Prosthetic cardiac valve again noted with surgical clips projecting over the right chest wall . Bilateral humeral head replacement noted . Cardiomegaly is again noted with bilateral pleural effusions , left greater than right , not significantly changed from prior . There is increasing consolidation at the right lung base which could represent atelectasis versus pneumonia . There is likely compressive left lower lobe atelectasis . Hilar congestion is noted without overt edema . No pneumothorax . Mediastinal contour is unchanged with atherosclerotic calcifications .
    OUTPUT:
    
Cardiomegaly , hilar congestion with pleural effusions , left greater than right . Increasing right basal opacity which could represent atelectasis versus pneumonia .