In one taxon, the "early-onset" type, you have same-sex-attracted males who have been extremely feminine (in social behavior, interests, _&c._) since to early childhood, in a way that causes social problems for them—the far tail of effeminate gay men who end up fitting into Society better as straight women. Blanchard called them "homosexual transsexuals", which is sometimes abbreviated as _HSTS_. That's where the "woman trapped inside a man's body" trope comes from. [This one probably _is_ a brain-intersex condition.](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180619/)
In one taxon, the "early-onset" type, you have same-sex-attracted males who have been extremely feminine (in social behavior, interests, _&c._) since to early childhood, in a way that causes social problems for them—the far tail of effeminate gay men who end up fitting into Society better as straight women. Blanchard called them "homosexual transsexuals", which is sometimes abbreviated as _HSTS_. That's where the "woman trapped inside a man's body" trope comes from. [This one probably _is_ a brain-intersex condition.](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180619/)