Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ET tube terminates at the level of the clavicles . A right subclavian central venous catheter terminates at the superior cavoatrial junction . A nasogastric tube enters the stomach , distal tip not visualized . There is no pneumothorax . Lung volumes are low . Small layering left pleural effusion is unchanged . A right basilar airspace opacity with air bronchograms is more prominent today . A left basilar retrocardiac airspace opacity has slightly improved following partial re-expansion of the left lower lobe .
    OUTPUT:
    
Evolving bibasilar pneumonia , right greater than left , after partial re-expansion of the left lower lobe . Stable small layering left pleural effusion . Lines and tubes in satisfactory position .