I thought it might be difficult to get a photo, but if you can get one, he can probably give a better opinion. But that would probably creep me out to do that to one of my kids, so I can understand if you don't.
I remember once a guy sent in a VERY close up of the PWS on his scrotum. VERY close up.
Let us know how things are going. Any idea when you'll get to see the pediatric derm?