Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright view of the chest demonstrates low lung volumes . Loculated right pleural effusion is essentially unchanged since ___ . Small left pleural effusion persists . Moderate cardiomegaly is unchanged . Fullness at the level of azygos vein is noted . Aortic arch calcifications are noted . Pulmonary edema appears progressed since prior . There is no pneumothorax . Bibasilar airspace opacities may reflect compressive atelectasis .
    OUTPUT:
    
1 . Moderate right loculated pleural effusion and small left pleural effusions appear unchanged since ___ exam . Bibasilar opacities likely reflect atelectasis , though aspiration or infection is not completely excluded . 2 . Moderate cardiomegaly . Mild pulmonary edema appears progressed since prior .