Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal , and mediastinal and hilar contours are unchanged . Lungs remain hyperinflated with attenuation of upper lobe vessels suggesting the presence of emphysema and chronic obstructive pulmonary disease . New patchy opacity has developed in the left infrahilar region , and lungs otherwise appear clear . No pleural effusion . Compression deformity with sclerosis in the mid thoracic spine as well as additional mild compression deformity at the thoracolumbar junction appear unchanged .
    OUTPUT:
    
New patchy left infrahilar opacity concerning for possible pneumonia . Followup radiographs may be helpful in this regard .