Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph provided . Increased opacity at the left lung base is concerning for pneumonia with associated pleural effusion . There is emphysema with biapical pleural parenchymal scarring . Faint linear density at the right lung base could represent atelectasis versus scarring . The heart size appears grossly stable though the left heart border is partially obscured . Mediastinal contour is normal . Bony structures are intact .
    OUTPUT:
    
Increasing consolidation at the left lung base is concerning for worsening pneumonia and effusion .