Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The orogastric tube ends in the stomach . The endotracheal tube ends 2 .6 cm above the carina . The previously seen retrocardiac opacity has improved . Minimal bibasilar linear opacities persist . There is no large pleural effusion or pneumothorax . The cardiac silhouette is mildly enlarged . The aortic knob is calcified .
    OUTPUT:
    
Appropriately positioned endotracheal and orogastric tubes . Improved retrocardiac opacity with persistent linear bibasilar opacities which may represent atelectasis or aspiration . Infection can not be excluded .