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Twenty years of misdiagnosis of schizophrenia in a patient with Dandy-Walker variant syndrome
  1. João Gama Marques
  1. Hospital Júlio de Matos, Centro Hospitalar Psiquiátrico de Lisboa; Clínica Universitária de Psiquiatria e Psicologia Médica, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
  1. Correspondence to Dr João Gama Marques; joaogamamarques{at}


Various case reports of patients with Dandy-Walker variant syndrome mimicking schizophrenia have been published in the last 20 years, suggesting that this neurodevelopment disorder should be part of the differential diagnosis for every patient with a first episode of psychosis. In this report, it is presented that a patient who was diagnosed and treated as a paranoid schizophrenic for 20 years and had four bone fractures secondary to ataxic gait impairment, before performing a neuroimaging examination that revealed Dandy-Walker variant syndrome.

  • dandy-walker
  • cerebellum
  • organic psychosis
  • neuropsychiatry
  • secondary schizophrenia

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  • Contributors JGM is the sole author of the manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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