Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is diffuse increased interstitial marking suggesting mild interstitial edema , atypical pneumonia not excluded . No lobar consolidation is seen . No pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Diffuse increased interstitial markings may be due to interstitial edema versus atypical infection , depending on the clinical scenario .