Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Residual stellate left upper lobe opacity is most compatible with scarring . Left mid lung granuloma is unchanged . Otherwise , the lungs remain hyperexpanded compatible with chronic obstructive pulmonary disease without new opacity . There is no pleural effusion or pneumothorax . The heart is normal in size and cardiomediastinal contours .
    OUTPUT:
    
Residual left upper lobe stellate opacity may reflect scarring after pneumonia . However , followup radiograph in ___ weeks is recommended . Findings were entered in the radiology department 's online record for notification of critical results on ___ .