Document Detail


Hypothesis: grandiosity and guilt cause paranoia; paranoid schizophrenia is a psychotic mood disorder; a review.
MedLine Citation:
PMID:  18056109     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Delusional paranoia has been associated with severe mental illness for over a century. Kraepelin introduced a disorder called "paranoid depression," but "paranoid" became linked to schizophrenia, not to mood disorders. Paranoid remains the most common subtype of schizophrenia, but some of these cases, as Kraepelin initially implied, may be unrecognized psychotic mood disorders, so the relationship of paranoid schizophrenia to psychotic bipolar disorder warrants reevaluation. To address whether paranoia associates more with schizophrenia or mood disorders, a selected literature is reviewed and 11 cases are summarized. Comparative clinical and recent molecular genetic data find phenotypic and genotypic commonalities between patients diagnosed with schizophrenia and psychotic bipolar disorder lending support to the idea that paranoid schizophrenia could be the same disorder as psychotic bipolar disorder. A selected clinical literature finds no symptom, course, or characteristic traditionally considered diagnostic of schizophrenia that cannot be accounted for by psychotic bipolar disorder patients. For example, it is hypothesized here that 2 common mood-based symptoms, grandiosity and guilt, may underlie functional paranoia. Mania explains paranoia when there are grandiose delusions that one's possessions are so valuable that others will kill for them. Similarly, depression explains paranoia when delusional guilt convinces patients that they deserve punishment. In both cases, fear becomes the overwhelming emotion but patient and physician focus on the paranoia rather than on underlying mood symptoms can cause misdiagnoses. This study uses a clinical, case-based, hypothesis generation approach that warrants follow-up with a larger representative sample of psychotic patients followed prospectively to determine the degree to which the clinical course observed herein is typical of all such patients. Differential diagnoses, nomenclature, and treatment implications are discussed because bipolar patients misdiagnosed with schizophrenia are severely misserved.
Authors:
Charles Raymond Lake
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Publication Detail:
Type:  Case Reports; Journal Article; Review     Date:  2007-12-01
Journal Detail:
Title:  Schizophrenia bulletin     Volume:  34     ISSN:  0586-7614     ISO Abbreviation:  Schizophr Bull     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-10-14     Completed Date:  2009-02-03     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  0236760     Medline TA:  Schizophr Bull     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1151-62     Citation Subset:  IM    
Affiliation:
Department of Psychiatry, University of Kansas Medical Center, Kansas City, KS 66160-7341, USA. clake@kumc.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Affect
Bipolar Disorder / diagnosis*,  genetics,  psychology
Defense Mechanisms*
Delusions / diagnosis,  genetics,  psychology
Diagnosis, Differential
Diagnostic and Statistical Manual of Mental Disorders
Female
Genotype
Guilt*
Humans
International Classification of Diseases
Male
Middle Aged
Phenotype
Schizophrenia, Paranoid / diagnosis*,  genetics,  psychology
Terminology as Topic
Comments/Corrections

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