Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , causing crowding of bronchovascular structures . Increasing opacity at the right lung base is new from 2 days prior and could represent a developing infection , or aspiration . There are small bilateral pleural effusions . The aorta is calcified and tortuous . Heart size is normal . Appearance of the hilar contours is unchanged .
    OUTPUT:
    
Developing right lung base opacity from 2 days prior could represent infection or aspiration .