Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous chest x-ray from ___ . Linear opacity in the right mid lung is suggestive of scarring . Increased interstitial markings are seen throughout the lungs including the left upper lung and lung bases . Increased density in retrocardiac region is compatible with moderate hiatal hernia . No large effusion . Cardiac silhouette is otherwise unremarkable . Dense atherosclerotic calcifications noted at the arch . Osseous and soft tissue structures are grossly unremarkable .
    OUTPUT:
    
Findings suggestive of right mid lung scarring . Increased interstitial markings particularly at the bases , potentially due to chronic lung disease ; however , component of active inflammation is also possible .