Folie à deux: contagious mental illness? Report of a clinical case

• DOI: 10.1192/j.eurpsy.2022.2053
• Publication Date: 2022-09-02T06:39:38Z
• Authors: A. Costa; S. Jesus; M. Almeida; J. Alcafache
• Keywords: folie à deux; Psychiatry; 03 medical and health sciences; 0302 clinical medicine; shared psychosis; Shared delusion; RC435-571; Induced delusional disorder; Abstract; 3. Good health

IntroductionFolie à deux is a clinical condition that was first described in 19th century. It is a psychotic disorder in which two closely associated individuals share a similar delusional system. However, folie à deux is still a matter of study and debate today as it remains a challenge for psychiatrists.ObjectivesThe aim of this article is to report a clinical case of folie à deux, between na inducer son and an induced mother. Review the nosological significance of folie à deux and to explore the disorder among patients with psychosis.MethodsSearch in the PubMed/MedLine and Medscape databases with the following key words: folie à deux; shared psychosis; shared delusion.ResultsWe presente a case of folie à deux between na inducer son 28 years old and the induced, his mother. They were found to be sharing similiar delusional beliefs. The patient has assumed the role of “man of the house” since his father’s death.ConclusionsMany years after it was first described, folie à deux is still an interesting and challenging disorder to psychiatrists. Its recognition and correct referral for a rare diagnosis, such as folie a deux, are extremely important.DisclosureNo significant relationships.