Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with the study of ___ , there is little overall change in the appearance of the right pleural effusion with compressive atelectasis at the base . Mild indistinctness of pulmonary vessels raises the possibility of some elevated pulmonary venous pressure . Mild enlargement of the cardiac silhouette is again seen .
    OUTPUT:
    
Little overall change .