Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . The heart is normal in size . There is no pleural effusion or pneumothorax . Most striking in the anterior right upper lobe , there is a region of vague opacity with peribronchial cuffing and interstitial prominence with less striking but similar types of changes seen throughout each lung , new since the prior examination . A predominantly peripheral distribution is not typical for pulmonary edema , however .
    OUTPUT:
    
Findings suggesting an interstitial abnormality with bronchial cuffing and suggestion of peripheral predominance . Differential considerations include airway inflammation , atypical pattern of infection or the possibility of interstitial disease .