There has been a surge in interest in and research on narcissism and narcissistic personality disorder (NPD). Despite or because of this increased attention, there are several areas of substantial debate that surround the construct, including descriptions of grandiose and vulnerable dimensions...

We review the literature on pathological narcissism and narcissistic personality disorder (NPD) and describe a significant criterion problem related to four inconsistencies in phenotypic descriptions and taxonomic models across clinical theory, research, and practice; psychiatric diagnosis; and...