Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . Multifocal airspace opacities have not significantly change ___ . There is no pleural effusion or pneumothorax . Cardiomediastinal and hilar structures are normal . New septal lines in the lung bases , left greater than right can represent early interstitial edema .
    OUTPUT:
    
Stable multifocal pneumonia . Likely new mild interstitial edema , suggest attention on follow up .