Shared delusional disorder occurs when a delusional belief held by one person (the “primary”) becomes shared by one other (the “secondary”) or several other people associated with th...
“Shared ideas” are more common than “shared psychoses.”
WHO estimate the world prevalence of de...
One or more people may come to share in an individual’s delusions or paranoia, most commonly in cases in which those involved are isolated and emotionally close, and the s...
A major risk factor for a second person to develop a delusional disorder is to have a close family member (the primary person affected) with a psychiatric diagnosis of schizophrenia, mood...
Familial mental illness
Familial neurologic conditions (dementia)
Immigration/displacement from home
Massive trauma
Hearing (or other sensory) loss, which can lead to misint...
For the primary: may be a history of lack of parental contact leading to feelings of deprivation or excess family strife, in turn leading to emotional overload. A child in such an env...
First, explore whether the primary and secondary patients should be separated: If they are willing to be treated and their relationship is benign, consider treating them together. Also asses...
Psychotherapy
Care professionals to support the family (or group) involved and try to lessen social isolation
Legal involvement if a child/elder/incompetent adult has been victimized
F24 Shared psychotic disorder
F22 Delusional disorders
61831009 Induced psychotic disorder
48500005 delusional disorder (disorder)
Rule out medical causes for psychosis.
Be aware that delusions occur along a continuum, from a cherished or cultural belief to a pathologically adopted belief system that isolates and m...
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