The way I've heard it is that personality disorders are incredibly co-morbid with PTSD, and that even adult PTSD can lead to developing personality disorders that weren't present in childhood.

Having Antisocial Personality Disorder, I was interested to find that AsPD is a lot more common in people with PTSD than it is in the general public. I've tried to be tested for PTSD, but my clinicians have told me that they don't want to make the mistake of associating PTSD with sociopathy because of the stigma PTSD already has.

I'm pretty sure that my symptoms stem from PTSD, though. I already wrote a post called "Powerlessness" in the AsPD forum about how all of the problems I have with psychopathy and AsPD boil down to control issues that I gained from childhood abuse.