The plague: a case of delusional infestation with folie à deux

Authors

  • Ana Carolina de Melo Diogo Sereijo Centro Hospitalar Universitário de Lisboa Norte
  • Rodrigo Cruz Santos Centro Hospitalar Universitário de Lisboa Norte
  • Maria João Fernandes Gonçalves Centro Hospitalar Universitário de Lisboa Norte
  • Rodrigo Alves Pereira Carvalho Saraiva Centro Hospitalar Universitário de Lisboa Norte
  • Ana Rita de Matos Amaro Hospital Dona Estefánia
  • Ricardo Moutinho Coentre Centro Hospitalar Universitário de Lisboa Norte
  • Maria Manuela Neves Abreu Centro Hospitalar Universitário de Lisboa Norte
  • Rita Mafalda Morais Barandas Centro Hospitalar Universitário de Lisboa Norte

DOI:

https://doi.org/10.12662/2317-3076jhbs.v10i1.4282.p1-3.2022

Keywords:

Shared psychotic disorder, Folie à deux, Delusional infestation, Delusional parasitosis

Abstract

Folie à deux or Shared psychotic disorder (SPD) is a rare condition characterized by shared psychotic symptoms between two or more individuals. Delusional parasitosis (DP) is an uncommon psychiatric illness in that patients believe they are infested by insects, without evidence to support this belief. DP occurs in 5–15% of SPD. We report a case of cutaneous DP with SPD between an elderly mother and a daughter that lived together and withdrew from other social contacts for the last three years. We aim to highlight the relationship between SPD and DP, its prognosis, and clinical implications.

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Published

2022-12-29

How to Cite

1.
Sereijo AC de MD, Santos RC, Gonçalves MJF, Saraiva RAPC, Amaro AR de M, Coentre RM, et al. The plague: a case of delusional infestation with folie à deux. J Health Biol Sci. [Internet]. 2022 Dec. 29 [cited 2025 Jul. 1];10(1):1-3. Available from: https://periodicos.unichristus.edu.br/jhbs/article/view/4282

Issue

Vol. 10 No. 1 (2022): Journal of Health and Biological Sciences

Section

Case Report

License

Copyright (c) 2022 Journal of Health & Biological Sciences

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