Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There are chronically increased interstitial markings bilaterally , which may be due to chronic lung disease . In comparison to ___ , findings appear worsened which may be due to superimposed edema . There is bibasilar atelectasis and mild biapical pleural thickening . Right middle lobe patchy opacity seen in both the frontal and lateral views , which may relate to atelectasis and scarring ; however , superimposed infectious process or aspiration is not excluded . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Chronically increased interstitial markings bilaterally suggest chronic lung disease with possible superimposed edema . Patchy somewhat linear right middle lobe opacities could relate to atelectasis and / or scarring ; however , superimposed infectious process is not excluded .