Narcissistic personality disorder
From The Art and Popular Culture Encyclopedia
Narcissistic personality disorder (NPD) is a personality disorder defined by the Diagnostic and Statistical Manual of Mental Disorders, the diagnostic classification system used in the United States, as "a pervasive pattern of grandiosity, need for admiration, and a lack of empathy."
The narcissist is described as turning inward for gratification rather than depending on others and as being excessively preoccupied with issues of personal adequacy, power, and prestige. Narcissistic personality disorder is closely linked to self-centeredness. It is also colloquially referred to as "the God complex."