Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to prior chest CT from ___ . Low lung volumes are seen . Within this limitation , however , there is suggestion of increased interstitial markings throughout both lung fields . There is no confluent consolidation or pleural effusion . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are grossly unremarkable .
    OUTPUT:
    
Increased interstitial markings throughout the lungs bilaterally despite low lung volumes . This raises the possibility of interstitial edema ; however , atypical infection can have a similar appearance . Clinical correlation suggested .