Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Increase in interstitial markings bilaterally with perihilar distribution suggests mild - to - moderate interstitial edema . Atypical infection is not entirely excluded in the appropriate clinical setting . No lobar consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Findings suggest interstitial pulmonary edema , atypical infection is not entirely excluded in the appropriate clinical setting .