Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided demonstrate trace fluid tracking along the fissural surfaces . There may be minimal interstitial edema . No definite signs of pneumonia or CHF . Please note evaluation for PCP on chest radiograph is limited . Bony structures appear intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Probable mild interstitial edema with trace pleural effusion .