Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is upper limits normal in size . There are compressive changes at both bases . There is a small amount of fluid in the fissure on the right . There is increased retrocardiac opacity that is felt to be mainly due to volume loss , although an early infiltrate can not be totally excluded . There is minimal pulmonary vascular redistribution . There are no effusions .
    OUTPUT:
    
No definite infiltrate .