Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright chest radiograph demonstrates decreased lung volumes , with interval increase in bibasilar opacities particulary on the right likely reflecting a combination of pleural effusions and adjacent atelectasis . The pulmonary vasculature is normal . The cardiac silhouette is incompletely evaluated , and the mediastinal contours again show calcification of the aortic knob and aortic tortuosity . Healed left rib fractures are unchanged . There is no pneumothorax .
    OUTPUT:
    
Increased bilateral , particularly right sided pleural effusions with probable adjacent atelectasis , although in the appropriate clinical setting , pneumonia can not be excluded in the lower lobes .