Related Experiment Video
Updated: Jul 27, 2026

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease
Published on: February 3, 2012
Polymicrogyria in chromosome 22 delection syndrome
P M Bingham1, D Lynch, D McDonald-McGinn
1Division of Neurology, Children's Hospital of Philadelphia, PA 19104, USA.
Chromosome 22q11 deletion syndrome can present with polymicrogyria. Consider 22q11 deletion in patients diagnosed with polymicrogyria.
Area of Science:
- Neurogenetics
- Developmental Biology
- Pediatric Neurology
Background:
- Chromosome 22q11 deletion syndrome is a common genetic disorder with diverse clinical manifestations.
- Polymicrogyria is a brain malformation characterized by excessive small folds on the cerebral surface.
Observation:
- Two pediatric patients with diagnosed chromosome 22q11 deletion syndrome were identified.
- Both patients exhibited neuroradiologic evidence of polymicrogyria.
Findings:
- This case series highlights a potential association between chromosome 22q11 deletion syndrome and polymicrogyria.
- Neuroradiologic findings of polymicrogyria were present in children with 22q11 deletion.
Implications:
- The findings suggest that polymicrogyria may be an underrecognized feature of chromosome 22q11 deletion syndrome.
- Clinicians should consider genetic testing for 22q11 deletion in children presenting with polymicrogyria.
More Related Videos
09:16Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
08:22A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
Published on: December 1, 2017
Related Concept Videos
Meiosis I
Karyotyping
Nondisjunction
Polytene Chromosomes
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Meiosis II
The timing and cell division patterns of meiosis differ between males and females. In male meiosis, the centrosomes are part of the formation of the meiotic spindle. However, in oocytes, including that of humans, Drosophila,...