Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi upright view of the chest . Overlying EKG leads are noted . Areas of perihilar reticular opacity again noted compatible with scarring . The overall extent appears somewhat improved from prior studies . No convincing signs of pneumonia or edema . No large effusion or pneumothorax is seen . Cardiomediastinal silhouette appears stable . No acute bony abnormality is seen .
    OUTPUT:
    
Areas of scarring in the lungs appear slightly improved from prior .