In conclusion, our results show that the white matter microstructure pattern in untreated (not transitioned) FtM transsexuals are closer to the pattern of subjects who share their gender identity (males) than to those who share their biological sex (females). Our results provide evidence for structural differences in the untreated FtM transsexual’s brain. http://www.sciencedirect.com/science/article/pii/S0022395610001585?via%3Dihub