www.quora.com/Why-dont-cosmetic-surgeons-expand-the-pelvic-bone-on-MtF-transgender-people-as-an-alternative-to-silicone-implants
I didn't realize we were this different to men!
It also goes some way to explaining why TW really shouldn't be competing in women's sport.
Their whole bone structure is different and no amount of hormones or fat distribution will ever change the basic structure of the bones.
A narrow pelvis etc is more suited to running.