Case report

https://doi.org/10.20471/acc.2021.60.02.18

Cognitive and Psychotic Symptoms in a Patient with Infratentorial Arachnoid Cyst: Case Report

Maja Škarić ; Department of Psychiatry, Dr. Ivan Barbot Neuropsychiatric Hospital, Popovača, Croatia
Branka Aukst Margetić ; Department of Psychiatry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
Anamarija Bogović Dijaković ; Department of Psychiatry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
Dalibor Karlović ; Department of Psychiatry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia

Abstract

We present a case of a patient with treatment resistant hallucinatory experiences
with incidental finding of an arachnoid cyst localized in the posterior infratentorial cranial fossa dorsally
to the cerebellum. Psychological testing revealed significant deficit of cognitive functions to the
level of mild intellectual disability in a person that had previously finished high school with good
grades. A combination of clozapine and lamotrigine led to significant improvement in mood and reduction
of hallucinations, but without improvement in cognitive functions. We also performed a literature
review of previously published case reports or case series of co-occurring posterior fossa arachnoid
cyst and schizophrenia or psychosis or psychiatric symptoms using PubMed search and discuss
some controversies considering their treatment outcome.

Keywords

Arachnoid cyst; Cognitive disorder; Psychotic symptoms

Hrčak ID:

263759

URI

https://hrcak.srce.hr/263759

Publication date:

1.6.2021.

Article data in other languages: croatian

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