Final answer:
Narcissistic personality disorder is characterized by an exaggerated sense of self-importance, a lack of empathy, and a preoccupation with fantasies of success and power.
Step-by-step explanation:
Narcissistic personality disorder is characterized by an exaggerated sense of self-importance. Individuals with this disorder have a grandiose view of themselves and believe they are superior to others. They often need constant admiration and validation from others to maintain their self-esteem. In addition, people with narcissistic personality disorder exhibit a lack of empathy and a preoccupation with fantasies of success, power, and beauty. They may exploit others for their own gain and have difficulty forming meaningful and genuine relationships. Treatment for narcissistic personality disorder usually involves psychotherapy, with the goal of helping the individual develop healthier and more realistic views of themselves and others.