Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Following removal of a left - sided chest tube , a left apical hydropneumothorax is not appreciably changed in size . The air - fluid level is again demonstrated at the interspace between the left fifth and sixth posterior rib levels . Homogeneous increased opacity partially obscuring right heart border and right hemidiaphragm is concerning for developing atelectasis involving right middle and right lower lobes , likely due to mucoid impaction in the bronchus intermedius . Improving aeration at left lung base with some residual mild atelectasis remaining . Persistent small bilateral pleural effusions . Incidental hiatal hernia .
    OUTPUT:
    
1 . No substantial change in left apical hydropneumothorax following left chest tube removal in this patient status post left upper lobe wedge resection . 2 . Worsening atelectasis involving the right middle and right lower lobe . 3 . Improving aeration of left lung base . Dr . ___ was notified by telephone about these results on ___ .