Egomania is preoccupation with one's self[1] and applies to anyone who follows one’s own ungoverned impulses and is possessed by delusions of personal greatness and feels a lack of appreciation.[2] Someone suffering from this extreme egocentric focus is an egomaniac. The condition is psychologically abnormal.[1]
The term egomania is often used by laypersons in a pejorative fashion to describe an individual who is intolerably self-centred. The clinical condition that most resembles the popular conception of egomania is narcissistic personality disorder.
Kittigate 