Delusional Misidentification Syndromes in Obsessive–Compulsive Disorder

Melca, Isabela A; Rodrigues, Clarissa L.; Serra-Pinheiro, Maria Antônia; Pantelis, Christos; Velakoulis, Dennis; Mendlowicz, Mauro V.; Fontenelle, Leonardo F.

doi:10.1007/s11126-012-9237-z

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…Moreover, in a case of obsessive-compulsive disorder, a nondelusional variant of Capgras syndrome characterized by doubts regarding the substitution by doubles has been reported in literature 28. Another study of cases of delusional misidentification syndromes in subjects suffering from obsessive-compulsive disorder suggested that these syndromes could be the result of an association between obsessive fears and pre-existing cognitive deficits 29. We know from the literature that Capgras syndrome is associated with organic illness in up to 40% of cases 5.…”

Section: Discussionmentioning

confidence: 99%

Clinical features and imaging findings in a case of Capgras syndrome

Luca

Bordone²,

Luca³

et al. 2013

NDT

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Capgras syndrome consists of the delusional belief that a person or persons have been replaced by doubles or impostors. It can occur in the context of both psychiatric and organic illness, and seems to be related to lesions of the bifrontal and right limbic and temporal regions. Indeed, magnetic resonance imaging has revealed brain lesions in patients suffering from Capgras syndrome. This case study reports the findings of a thorough diagnostic evaluation in a woman suffering from Capgras syndrome and presenting with the following clinical peculiarities: obsessive modality of presentation of the delusional ideation, intrusiveness of such ideation (that even disturbed her sleep), as well as a sense of alienation and utter disgust towards the double. These characteristics bring to mind the typical aspects of obsessive-compulsive disorder. Neuroanatomic investigation, through magnetic resonance imaging, performed on this patient showed alteration of the bilateral semioval centers, which are brain regions associated with the emotion of disgust and often show alterations in subjects suffering from obsessive-compulsive disorder. Hence, neuroimaging allows researchers to put forward the hypothesis of a common neuroanatomic basis for Capgras syndrome and obsessive-compulsive disorder, at least for cases in which the delusional ideation is associated with deep feelings of disgust and presents with a certain pervasiveness.

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Section: Discussionmentioning

confidence: 99%

Clinical features and imaging findings in a case of Capgras syndrome

Luca

Bordone²,

Luca³

et al. 2013

NDT

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“…Fregoli delusion has also been associated with bipolar schizoaffective disorder and Hashimoto thyroiditis (Ceylan et al, 2010). Melca et. al.…”

Section: Fregoli Delusionmentioning

confidence: 99%

“…Many DMS are often associated with psychoses and have only rarely been reported in non-psychotic individuals. They are, nevertheless, fairly uncommon, occurring in about 4% of patients presenting with functional psychoses (Melca et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Delusional Misidentification Syndromes: Psychopathology and Culture

Volkan¹

2020

jhms

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Cotard's Syndrome Triggered by Fear in a Patient with Intellectual Disability: Causal or Casual Link?

Luca

Finzi

Casella

et al. 2018

Issues in Mental Health Nursing

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Cotard's syndrome is a neuropsychiatric disease characterized by a variety of nihilistic delusions, commonly associated with several psychotic and major affective disorders, and neurological diseases, including stroke, dementia, and mental retardation. A 39-year-old male with mental retardation developed Cotard's syndrome, following an important episode of fear. During admission to our neurological unit, the patient underwent an accurate assessment, including neuroradiological, clinical, and neuropsychological examinations. At the psychiatric evaluation, he presented nihilistic delusions, in which he negated the existence of his body parts and the existence of his family members. The neuropsychological assessment ruled out other possible causes of misidentification, including the post-traumatic stress disorder. Thus, since also organic causes of Cotard's syndrome were excluded, the correlation between fear and the syndrome has been postulated and the patient opportunely treated, using a multidisciplinary approach. Our case suggests that in predisposed individuals negative emotions, including fear, may lead to delusional syndromes.

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Delusional Misidentification Syndromes in Obsessive–Compulsive Disorder

Cited by 6 publications

References 23 publications

Clinical features and imaging findings in a case of Capgras syndrome

Clinical features and imaging findings in a case of Capgras syndrome

Delusional Misidentification Syndromes: Psychopathology and Culture

Cotard's Syndrome Triggered by Fear in a Patient with Intellectual Disability: Causal or Casual Link?

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