Holy smokes. You are so knowledgeable. I suddenly have a new found respect for you, Ms. Khumi, if I may call you that from now on. 
Yes, this is exactly what I wanted to know.
I am also not sure about tumor, but I think I article I read was about some damage done after tumor removal and some docs were using stem cells to regenerate what was lost. I may be totally wrong here. Let me find that article and get back on this.
Now, I have a friend who’s brother in India had spinal embolization after a series of problems. He has since then lost the ability to walk and is paralyzed waist down. Recently he read about a hospital in Southern India that showed promising procedures involving stem cell transplantation to give possible “strength” back to the lost “stuff” in the back and hopefully with time see a big difference. He is going for it. She called me to ask me the question above as to why we don’t hear of these procedures here.
I understand what the issues are with taking cells from an embryo, but can’t they use stem cells from placentas that are donated after a child is born?