Hi, @ric82 - welcome to Mayo Clinic Connect. It sounds as though you have had moyamoya for many years.

I'm also tagging a few members you might like to meet outside this particular discussion who've talked about moyamoya: @arianajpalomo @saigenicole @terrahmf @badresser @aforcucci.

ric82 - Will you share more about how you came to have radiation scar tissue blockage on both sides?