Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC tip is in mid SVC . Stable bilateral diffuse reticular opacities and heterogeneous opacities with peribronchial cuffing and focal areas of luceny , suggesting a stable acute interstitial and alveolar process on a scaffolding of severe emphysema . Emphysema is better characterized on CT . No pneumothorax or pleural effusion . Heart size , mediastinal and hilar contour are normal . Unchanged diffuse sclerotic lesions from known metastatic disease .
    OUTPUT:
    
No interval change in multifocal pneumonia and mild pulmonary edema on a scaffolding of known severe emphysema .