Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post prior median sternotomy . A feeding tube extends below the level the diaphragms but beyond the field of view of this radiograph . A left internal jugular central venous line is unchanged in positioning . There is no significant change in the degree of pulmonary vascular congestion and perihilar fullness . Persisting retrocardiac opacity , likely reflective of atelectasis . No pleural effusion or pneumothorax identified .
    OUTPUT:
    
No significant interval change since the prior study .