Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change compared to the prior radiograph performed 1 hr earlier . Endotracheal tube terminates 4 .9 cm above the carina . An enteric tube is partially visualized , extending to at least the body of the stomach . Lung volumes are similar . Mild left retrocardiac opacity likely represents atelectasis , although superimposed infection could be considered in the appropriate clinical setting . No new consolidation . Mild pulmonary vascular congestion . No sizable pleural effusion or pneumothorax . Cardiomediastinal contours are normal . No acute osseous abnormalities .
    OUTPUT:
    
No change in probable left retrocardiac opacity and mild pulmonary vascular congestion .