Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The aorta is tortuous and calcified . The heart is normal in size . The lungs demonstrate patchy opacity in the right upper lobe that has increased since the prior radiographs although difficult to compare to the more recent CT . This appearance may reflect areas of increased mucous plugging associated with suspected lower airway infection or atypical infection . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Vague increased opacity in the right upper lobe suggesting airway inflammation or infection .