Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size appears mildly enlarged but unchanged . A moderate size hiatal hernia is re - demonstrated . Atherosclerotic calcifications are noted aortic knob . Soft tissue density along the left aortic knob contour is new since the previous CT and may reflect lymphadenopathy . Hilar contours are grossly unchanged from the recent CT . Pulmonary vasculature is not engorged . Lungs are hyperinflated . Patchy bibasilar airspace opacities appear new from the previous CT as are small bilateral pleural effusions . Scarring in the lung apices is re - demonstrated . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . New small bilateral pleural effusions and patchy bibasilar airspace opacities which may reflect infection or aspiration . 2 . New convex soft tissue density lateral to the aortic knob could reflect new prevascular lymphadenopathy . Follow - up chest CT is recommended . 3 . Moderate size hiatal hernia .