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Characteristics of Psychotic Disorder Due to Traumatic Brain Injury

An Analysis of Case Studies in the Literature

Received May 25, 2000; revised September 18, 2000; accepted September 22, 2000. From the Department of Neuropsychology, Hawaii State Hospital (D.F.) and Department of Psychiatry, John A. Burns School of Medicine (I.A.). Address correspondence to Dr. Fujii, Department of Neuropsychology, 45-710 Keaahala Road, Kaneohe, HI 96744. E-mail: defujii{at}hsh.health.state.hi.us

The authors analyzed data from 69 published case studies of Psychotic Disorder Due to Traumatic Brain Injury (PDTBI) in order to describe its common characteristics and assist in its diagnosis and differentiation from schizophrenia. The majority of these PDTBI patients were males with onset of symptoms occurring within the first 2 years after moderate to severe head injury. A majority showed abnormalities on MRI/CT and EEG with localization in the frontal and temporal areas. The general presentation included delusions and hallucinations without co-occurring negative symptoms. The findings demonstrate that patients with PDTBI have a profile that distinguishes itself from schizophrenia.

Key Words: Traumatic Brain Injury • Psychosis • Differential Diagnosis • Schizophrenia • Seizure Disorder

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