Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ and chest CT from ___ . Again seen are slightly low lung volumes . Increased interstitial markings seen primarily at the bases , perhaps more conspicuous on the current exam . There is no evidence of new confluent consolidation or large effusion . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Increased interstitial markings potentially from chronic lung disease . Component of interstial edema is also possible .