Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the endotracheal tube projects over the mid thoracic trachea . Two tubes extend to the gastric body . Low bilateral lung volumes . There are perihilar and diffuse airspace opacities as well as a more confluent opacity projecting over the peripheral left mid to lower lung zone . Right upper zone opacification is less confluent compared to prior . No pleural effusion or pneumothorax identified . Heart size is unremarkable allowing for projection .
    OUTPUT:
    
Patchy bilateral airspace opacification , with some improvement of right - sided opacification .