Medical and Other Psychiatric Conditions Potentially Misdiagnosed as Schizophrenia

  • C. Raymond LakeEmail author


Although psychotic mood disorders likely account for a large majority of misdiagnoses of schizophrenia, many medical disorders, medications, drugs, and some other psychiatric disorders can present with psychotic features that can also lead to misdiagnoses of schizophrenia or a mood disorder. Hall et al. (1978) reported an incidence of medical disorders in 9.1% of 658 consecutive psychiatric outpatients that they felt caused the patients’ psychiatric symptoms. Such patients were most commonly misdiagnosed with schizophrenia and depression. A similarly designed study found 5.6% of first-episode patients diagnosed with schizophrenia had an unrecognized medical disorder that explained psychotic symptoms (Johnstone et al. 1987).


Psychotic Symptom Antipsychotic Medication Tardive Dyskinesia Chronic Traumatic Encephalopathy Mood Symptom 
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© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Department Psychiatry and Behavioral SciencesUniversity of Kansas, School of MedicineKansas CityUSA

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