Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , there is considerable increase in interstitial markings diffusely in both lungs , with more confluent opacity at the lung bases , including new increased retrocardiac density and obscuration of the left hemidiaphragm . There is mild retraction of the right minor fissure . Again seen is background hyperinflation suggesting copd and mild to moderate cardiomegaly with a calcified aorta . Azygos lobe again noted , with increased opacity within the azygous lobe . There is also new blunting of both costophrenic angles .
    OUTPUT:
    
Increased interstitial opacities in both lungs , with probable alveolar component at both lung bases and small bilateral effusions , essentially all new compared with ___ . The appearance is suggestive of CHF . The possibility of an underlying pneumonic infiltrate can not be excluded . Background COPD and cardiomegaly again noted .