Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain hyperinflated and lucent consistent with COPD and pulmonary emphysema . There has been interval significant increase and left upper lobe consolidation worrisome for pneumonia . There is reticular left perihilar airspace opacities , as well , extending to the left lower lobe . Bibasilar atelectasis is seen . No pleural effusion or pneumothorax is seen . The cardiac silhouette remains mildly enlarged . The aorta is calcified and tortuous . Mild prominence of the left hilum may be due to underlying lymphadenopathy .
    OUTPUT:
    
Significant increase in left upper lobe opacity and increased left perihilar reticular opacities worrisome for significantly worsened pneumonia . COPD and pulmonary emphysema .