Delusions are fixed beliefs that are not amenable to change in light of conflicting evidence.
Ertomanic type: when the central theme of the delusion is that another person is in love with the individual
Grandiose type: when the central theme of the delusion is the conviction of having some great (but unrecognized) talent or insight or having made some important discovery
Jealous type: when the central theme of the individual’s delusion is that his or her spouse or lover is unfaithful
Persecutory type: when the central theme of the delusion involves the individual’s belief that he or she is being conspired against, cheated, spied on, followed, poisoned or drugged, maliciously maligned,  harassed, or obstructed in the pursuit of long-term goals
Somatic type: when the central theme of the delusion involves bodily functions or sensations
Mixed type: applies when no one<unk>  theme predominates
Unspecified type: applies when the dominant<unk>  belief cannot be clearly determined or is not described in the specific types
Delusional disorder
Acute psychosis
Borderline personality disorder
Schizophrenia
Dependent personality disorder
Schizoaffective disorder
Schizoid personality disorder
Paranoid personality disorder