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Updated: Jul 11, 2026

Lineage Tracing and Clonal Analysis in Developing Cerebral Cortex Using Mosaic Analysis with Double Markers (MADM)
Published on: May 8, 2020
Clonal pluralization of self, relatives and others
Sanjeev Ranjan1, Prabha S Chandra, Arun K Gupta
1Department of Psychiatry, Lyell McEwin Hospital, Elizabeth Vale, South Australia, Australia. esarsingh@yahoo.co.in
Clonal pluralization is a novel delusional misidentification syndrome where patients believe in multiple identical copies of themselves and others. This case study explores this rare phenomenon in a patient with schizophrenia.
Area of Science:
- Psychiatry
- Psychopathology
- Neuroscience
Background:
- Delusional misidentification syndromes represent a complex area within the psychopathology of psychotic disorders.
- Recent literature has identified a new variant, termed 'clonal pluralization', distinct from established syndromes.
Observation:
- This report details a specific case of schizophrenia exhibiting clonal pluralization.
- The patient presented with the delusion of having triplicate copies of herself and other individuals.
Findings:
- Clonal pluralization is characterized by the core belief in the existence of numerous physically and psychologically identical duplicates of an original person.
- This contrasts with traditional delusional misidentification syndromes.
Implications:
- Understanding clonal pluralization enhances diagnostic specificity for psychotic disorders.
- Further research into this syndrome may elucidate novel pathways in delusional ideation and self-perception.
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