Some authors, from Freud to Sam Vaknin speak about narcissism as originated by traumas in childhood. Perhaps the hypothesis about trauma in narcisism could help to understand and to treat this patients.
Thank you very much for your answer Michael Uebel!
Do you know something about the implications of these data en the efficacy of treatment for these patients? They are very difficult patients... I can see that the psychotherapy that deals with the acceptance of their vulnerability, or treatment of trauma helps, but I don't know many studies about efficacy and results with them.