Cluster B personality disorders (Last Updated - 5/22/2003)
-dramatic, emotional or wild group of personality disorders
-4 subtypes:
   A) Antisocial Personality Disorder:
      -disregard for other's rights
      -affex males > females
   B) Borderline Personality Disorder:
      -unstable mood
      -impulsiveness
      -affex females > males
   C) Histrionic Personality Disorder:
      -excessive emotions
      -attention-seeking
      -sexually provocative
   D) Narcissistic Personality Disorder:
      -grandiosity
      -sense of entitlement

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References:

1) First Aid for the USMLE Step 1. Bhushan et al. 2002. pg. 136.