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Updated: Aug 7, 2026

FISH for Pre-implantation Genetic Diagnosis
Published on: February 23, 2011
Pericentric inversion chromosome 9 and personality disorder
H V Kumar1, K J McMahon, K M Allman
1Department of Psychiatry, James Connolly Memorial Hospital, Dublin, Ireland.
A pericentric inversion of chromosome 9 was identified in a patient with a personality disorder. This case suggests broader cytogenetic screening for similar psychiatric conditions may be beneficial.
Area of Science:
- Genetics
- Psychiatry
- Clinical Cytogenetics
Background:
- Chromosome 9 pericentric inversions are known structural variations.
- Personality disorders represent a complex group of psychiatric conditions.
- The link between specific chromosomal abnormalities and psychiatric disorders is an area of ongoing research.
Observation:
- A case report detailing a patient with a pericentric inversion of chromosome 9.
- The patient also presented with a diagnosed personality disorder.
Findings:
- The study reports a correlation between pericentric inversion chromosome 9 and personality disorder in a single case.
- This specific chromosomal abnormality was observed in conjunction with the psychiatric condition.
Implications:
- The findings suggest a potential, though not definitively causal, link between pericentric inversion 9 and personality disorders.
- There is a call for increased cytogenetic screening in patients with specific psychiatric disorders.
- Further research is warranted to explore the prevalence and significance of chromosome 9 inversions in psychiatric populations.
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