Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube , right internal jugular catheter , NG tube and pacemaker leads are in unchanged satisfactory position . Bilateral ground - glass opacities have improved compared with prior exam . A small left pleural effusion is unchanged . No pneumothorax . Stable appearance of cardiomediastinal silhouette .
    OUTPUT:
    
1 . Tubes and lines in adequate position . 2 . Bilateral heterogeneous ground - glass opacities have improved compared with yesterday 's exam .