Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there has been interval slight improvement in vascular congestion and mild edema . Lung lung volumes are low . Linear atelectasis at the left lung base is unchanged . There is no pneumothorax . No new focal consolidation . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Interval slight improvement in vascular congestion and mild edema .