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Monosymptomatic psychoses which progress to schizophrenia

A Munro, B Pollock

The Journal of Clinical Psychiatry

|December 1, 1981

Summary

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Paranoid schizophrenia can feature prominent olfactory delusions. Olfactory Reference Syndrome, distinct from schizophrenia, may respond to pimozide treatment.

Area of Science:

Psychiatry
Neurology
Clinical Psychology

Background:

Schizophrenia is a complex psychiatric disorder often characterized by delusions and hallucinations.
Olfactory delusions, though less common, can be a significant symptom in certain psychiatric conditions.
Olfactory Reference Syndrome (ORS) is characterized by preoccupation with imagined body odor, without schizophrenic decompensation.

Observation:

This study describes two cases of paranoid schizophrenia where olfactory delusions were a predominant symptom.
A clear distinction is made between these schizophrenic cases and Olfactory Reference Syndrome (ORS).
ORS is proposed as a subtype of Monosymptomatic Hypochondriacal Psychosis (MHP).

Findings:

Olfactory delusions can be a key feature in paranoid schizophrenia at certain illness stages.

Related Experiment Videos

Olfactory Reference Syndrome (ORS) is differentiated from schizophrenia by the absence of schizophrenic decompensation.

Evidence suggests pimozide may be an effective treatment for various presentations of Monosymptomatic Hypochondriacal Psychosis (MHP).

Implications:

Understanding the distinction between olfactory delusions in schizophrenia and ORS is crucial for accurate diagnosis.
The classification of ORS as a subtype of MHP offers a new framework for understanding these conditions.
Pimozide shows promise as a targeted therapy for MHP, including ORS.