Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 6 .5 cm from the carina . The heart size is normal . The aorta is diffusely calcified . Mediastinal contours are unremarkable . Hilar contours are prominent , suggestive of underlying enlargement of the pulmonary arteries . Severe emphysema is seen within the lung apices , more pronounced on the right . Patchy opacity in the left lower lobe is concerning for an area of infection . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is detected .
    OUTPUT:
    
Endotracheal tube in standard position . Patchy left basilar opacity concerning for infection . Severe emphysema .