Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ central venous catheter ends in the low SVC . The ET tube ends just below the clavicles . A nasogastric tube enters the stomach , tip not visualized . There is no pneumothorax . Bilateral airspace opacities are improved at the right base . The heart and mediastinum are within normal limits despite the projection . Stable retrocardiac airspace opacification may be due to atelectasis or infection . A small left layering pleural effusion is unchanged .
    OUTPUT:
    
Slight interval improvement in bilateral airspace opacities , particularly at the right base , which may be due to resolving multifocal pneumonia . Stable layering small left pleural effusion .