Paranoid schizophrenia is a syndrome marked by delusions and hallucinations that involve themes of persecution and grandiosity. It is Schizophrenia marked by a preoccupation with delusions or by frequent auditory hallucinations related to a single theme, especially grandeur or persecution; characterized by a preoccupation with one or more delusions or frequent auditory hallucinations It is a type of schizophrenia dominated by delusions of persecution, along with delusions of grandeur.