Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided chest tube is unchanged in position , mild right lung base atelectasis is similar . There are no other interval changes in the right lung . Left lower and mid lung opacity reflecting a combination of atelectasis and effusion has minimally increased since ___ . There is no pneumothorax . Cardiomediastinal silhouette has stable appearance .
    OUTPUT:
    
Left lower and mid lung opacity , probably from a combination of small - to - moderate left effusion and adjacent lung atelectasis has minimally increased since ___ .