Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated with respect to the film . Lung volumes are low and the left hemidiaphragm is markedly elevated , similar to prior . Cardiomediastinal contours appear stable . Indistinct appearance of the pulmonary vascular markings is compatible with mild interstitial edema . No focal consolidation , substantial pleural effusion , or pneumothorax . No radiopaque foreign body .
    OUTPUT:
    
Mild pulmonary edema .