Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is increase in interstitial markings bilaterally suggesting mild interstitial edema . No large pleural effusion is seen . There is no definite focal consolidation . Biapical pleural thickening is seen . Subtle opacity projecting over the right apex appears pleural and may be due to scarring ; however , this could be confirmed on chest CT if of clinical concern . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Mild interstitial edema . Subtle right apical opacity , best seen on the frontal view is non-specific and could relate to pleural apical thickening . However , this could be better evaluated on a non-urgent CT .