Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . There is hyperexpansion of the lungs , consistent with chronic pulmonary disease . There is a new focal consolidation at the lateral aspect of the left upper lung . There is no large pleural effusion or pneumothorax . The right lung is essentially clear .
    OUTPUT:
    
New focal consolidation in the lateral aspect of the left upper lung is concerning for pneumonia , however a neoplastic process can not be excluded . Short interval followup is recommended upon completion of treatment to document resolution .