Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal and unchanged . The aorta is calcified , indicating atherosclerosis . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Low lung volumes . Compared to ___ , no significant change . Again seen are consolidations overlying the bilateral lower lobes , which may represent atelectasis or scar with pneumonia not excluded . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Compared to ___ , no significant change . Unchanged bibasilar consolidations , which may represent atelectasis or scar with pneumonia not excluded .