<prompt> Pathognomonic of maniac episode isElevated moodGrandiosityDecreased appetiteIncreased sleep  <response>: Mania tends to occur in episodes lasting 3-4 months followed by complete clinical cure In mania, there can be delusions of grandeurgrandiosity with markedly inflated self-esteem. A delusion of persecution may sometimes develop secondary to a delusion of grandeur. Ref: a sho textbook of psychiatry, Niraj Ahuja, 7th edition, pg no.69 