Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to ___ , increasing moderate left effusion . Slight worsening of the retrocardiac and left basilar opacity . The right lung is relatively unchanged low lung volumes . Cardiomediastinal contours are unchanged . Right - sided internal jugular catheter in similar position .
    OUTPUT:
    
Slight increase in moderate layering left - sided effusion and left basal opacity .