Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small / moderate bilateral pleural effusions are again noted . There is retrocardiac opacity only visualized on the frontal view without correlate on the lateral . Cardiac enlargement is unchanged as well as mild pulmonary vascular congestion without overt pulmonary edema .
    OUTPUT:
    
No significant interval change of bilateral pleural effusions and vascular congestion . Retrocardiac on the frontal view is not confirmed on the lateral and may be due to technique and / or atelectasis .