Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no evidence of pneumothorax . The cardiomediastinal contours are unchanged . Left perihilar and lower lobe consolidation is increased with blunting and obscuration of the left costophrenic angle and hemidiaphragm , concerning for worsening pneumonia . The aorta remains tortuous . The superior trachea is deviated to the right by an enlarged thyroid , as seen on the preceding CT . The right lung is relatively clear with changes of severe emphysema .
    OUTPUT:
    
Increased left perihilar and lower lobe consolidation , concerning for worsening pneumonia .