dr. alizadeh's goal is to minimize the scar that runs from wa'ad's scalp down to his chin. at north shore university hospital, which donated its facilities. >> montanti: i love you, wa'ad. >> alizadeh: my plan today is to go ahead and expand the skin surrounding the scar, putting a sophisticated tissue balloon underneath the skin, and the skin slowly stretches over time. >> pelley: that sophisticated tissue balloon, implanted under his cheek, will be inflated gradually over the course of weeks. so, over time, you're going to stretch his skin out, essentially creating new skin. >> alizadeh: that's right. >> pelley: and then, you're going to cut the scars out and move the new skin together? >> alizadeh: i hope so. that's the plan. >> pelley: what's the best you can hope for? >> alizadeh: my goal with wa'ad is that the defects that he has will not be noticeable when he becomes a young man. >> pelley: and you have a great deal of confidence in that? >> alizadeh: i do. >> pelley: but wa'ad's appearance would have to become much worse before he had a chance to get better. during