Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Coarse reticular opacities in bilateral lungs limits evaluation of lung parenchyma for subtle pneumonia . No large opacity . Heart size , mediastinal contour and hila are unremarkable . Pleural surfaces are normal without evidence of pleural effusion . No pneumothorax . Visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . Limited evaluation for subtle pneumonia given chronic interstital lung disease and absence of prior images . Comparision with prior studies would be helpful . 2 . Bilateral coarse reticular interstitial opacities is consistent with chronic interstitial lung disease .