Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The aorta is moderately tortuous and partly calcified , particularly along the arch . The cardiac , mediastinal and hilar contours appear unchanged . Blunting along the left costophrenic sulcus , probably due to scarring , appears unchanged . It is accordingly difficult to exclude a small pleural effusion but pleural effusions are doubted . The lungs appear hyperinflated . Patchy subpleural opacification at each lung apex , more extensive on the right than left , appears stable and suggests minor scarring . Streaky linear opacities in the right lung are probably due to atelectasis or scarring . There is no evidence for focal consolidation .
    OUTPUT:
    
Findings suggesting chronic obstructive pulmonary disease and areas of chronic minor scarring , but no definite evidence for pneumonia .