in mexico I had this surgery done 3 times by 3 different doctors first time in a hospital where most of them are interns or residents they cut it open some liquid came out they where not sure what it was they dint remove it my scalp went back to normal then grew back to a small oval shape i got it remove by a doctor but by mistake he left a piece inside at this point i only had a tiny scar barely able to see it got bigger the third time because they remove the scar and took the piece out