Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . There are diffusely increased interstitial markings throughout the lungs , slightly more prominent at the left upper lung laterally . There is no large confluent consolidation nor effusion . Cardiomediastinal silhouette is within normal limits . Coronary artery stents are noted . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Diffusely increased interstitial markings throughout the lungs . This could represent atypical infection , although chronic underlying lung disease is also possible . Please correlate with patient 's history and onset of symptoms . CT scan may offer additional detail .