Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip is 4 .5 cm above the carina , orogastric tube courses below the diaphragm into the stomach and is appropriately positioned . Bilateral diffuse pulmonary opacities are persisting . Left hemithorax is less opaque than it was yesterday , but whether this is due to differences from layering of left pleural effusion and position or true decrease in the lung opacities is difficult to differentiate . Small right pleural effusion is unchanged . Heart size is normal . Mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
Bilateral diffuse lung opacities are persisting concerning for asymmetric pulmonary edema or pneumonia . Improvement in the left hemithorax opacity could be due to difference in layering of the small effusion and position or could be a true decrease in the opacities .