Some of my fellow transitioners 20 years ago got the silicone injections in the face. There were some others around who had transitioned a decade or more earlier and had the injections too, and they all said not to do it because it sowly migrates over long periods of time and the doctors can't get it out, but sometimes it starts coming out on its own and then it is an open wound for a long time as it slowly migrates out.
I thought silicone wasn't approved for injection like that in the US. The transitioners I knew who got the injections went to Mexico, or got them illegally in the back of a van. If a Dr. is doing it openly, then maybe things have changed, and new techniques have proven more reliable.
I see that micro injections of silicon oil are medically approved in the US. Is that what you had?
http://www.adsci.com/filler/silicone-micro-injectionsAlso, my understanding is that Ms. Presley was duped into getting injections of industrial automobile repair grade silicone, and not surgical grade silicone.
So maybe you won't have any problems. I think those girls had big pieces of it injected, and who knows, maybe they got the industrial silicone. Maybe it's true that the injections in smaller amounts or surgical grade have a better chance of staying in place. Did you have a chance to talk to any of Dr. Brown's patients from years back?