Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is upper limits of normal in size and accompanied by pulmonary vascular congestion . Coarse interstitial opacities are present at both lung bases . Asymmetrical area of increased opacity in right superior mediastinal region may reflect distended vessels accentuated by apical lordotic projection . Possible small bilateral pleural effusions .
    OUTPUT:
    
Bibasilar interstitial opacities may represent a basilar distribution of interstitial edema . However , the coarseness of the interstitial opacities raises the possibility of a coexisting more fibrotic lung disease . Asymmetrical opacity adjacent to right superior mediastinal contour as described .