Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There bilateral lower lobe airspace opacities which have progressed compared to the prior exam and focally obscure both hemidiaphragms . While some of this could be due to volume loss , the appearance particularly on the right is concerning for an infectious infiltrate . There small bilateral pleural effusions . The heart size is upper limits of normal . The aorta is tortuous
    OUTPUT:
    
right lower lobe pneumonia with possible left lower lobe infiltrate as well