Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The heart size is normal . The mediastinal and hilar contours are unremarkable . Left lower lobe consolidative opacity is concerning for pneumonia . The right lung is clear . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Left lower lobe pneumonia . Followup radiographs after treatment are recommended to ensure resolution of this finding .