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Related Experiment Videos

A patient with partial duplication 2q and partial deficiency 11q.

C K Ho1, K C Henderson, F P Bowyer

  • 1Department of Pediatrics, Medical Center of Central Georgia, Macon 31201.

American Journal of Medical Genetics
|November 1, 1987
PubMed
Summary

This study reports a rare case of partial duplication of chromosome 2q and partial deficiency of chromosome 11q in a male infant. The genetic anomaly led to severe health issues and multiple congenital anomalies.

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Area of Science:

  • Genetics
  • Human Molecular Genetics
  • Clinical Genetics

Background:

  • Partial duplications and deficiencies of chromosomes can lead to complex genetic disorders.
  • Chromosome 2q and 11q rearrangements are associated with a range of developmental abnormalities.

Observation:

  • A male infant born prematurely presented with severe hyaline membrane disease, intraventricular hemorrhage, and bronchopulmonary dysplasia.
  • The patient exhibited hypotonia, psychomotor retardation, hearing loss, and numerous dysmorphic features including micrognathia and low-set ears.

Findings:

  • Karyotype analysis revealed a balanced translocation between chromosome 2 and 11, specifically der(11),t(2:11)(q32.2;q25)pat.
  • This resulted in a partial duplication of 2q and a partial deficiency of 11q.

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Implications:

  • This case highlights the phenotypic variability associated with 2q duplication and 11q deficiency syndromes.
  • Understanding such chromosomal abnormalities is crucial for genetic counseling and clinical management.