Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Biapical pneumothoraces have nearly resolved . Bibasilar atelectasis is again seen , otherwise lungs are clear . There is persistent apparent left hemidiaphragm elevation ; given the increase distance between the apex of left hemidiaphragm and stomach bubble , a subpulmonic effusion may contribute to this appearance . Otherwise , post-operative cardiomediastinal contour is stable . Right IJ line is in the right atrium .
    OUTPUT:
    
1 . Apparent left hemidiaphragm elevation , possibly in part due to a subpulmonic effusion . Additional left lateral decubitus radiograph may be helpful . 2 . Resolving pneumothoraces .