Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ and ___ . Compared to prior , there has been no significant interval change . Again seen are increased interstitial markings throughout the lungs . There is no focal consolidation or effusion . The cardiac silhouette is enlarged but stable . Osseous structures are unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process . Diffusely increased interstitial markings throughout the lungs similar to multiple prior exams , which raise the possibility of chronic underlying lung disease . Clinical correlation suggested regarding need for non-urgent chest CT to further characterize .