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[Distal deletion at 11q and language delay].
A Pérez Castillo1, M J Mardomingo Sanz, J A Abrisqueta Zarrabe
1Genética Humana (CIB), Consejo Superior de Investigaciones Científicas, Hospital General, Gregorio Marañón, Madrid.
Anales Espanoles De Pediatria
|March 1, 1989
Summary
A girl presented with developmental delays, including language and attention deficits, alongside physical anomalies. Genetic analysis revealed a specific deletion on chromosome 11q (11q deletion).
Area of Science:
- Genetics
- Developmental Pediatrics
- Clinical Cytogenetics
Background:
- Chromosome 11q deletions are rare genetic disorders associated with a spectrum of developmental and physical abnormalities.
- Understanding the specific breakpoints and associated phenotypes is crucial for diagnosis and management.
Observation:
- A case study of a young female exhibiting delayed language development, hyperactivity, and attention deficits.
- The patient also presented with minor physical malformations.
- Karyotyping using GTG and THA banding identified a distal deletion on the long arm of chromosome 11, specifically del(11)(pter----q23.3).
Findings:
- The karyotype confirmed a terminal deletion on chromosome 11q, denoted as 46,XX, del(11)(pter----q23.3).
- This genetic finding correlates with the observed clinical features, including developmental delays and dysmorphic features.
Implications:
- This case highlights the importance of cytogenetic analysis in diagnosing complex developmental disorders.
- Further research into the specific genes within the deleted 11q23.3 region may elucidate the underlying mechanisms of the observed phenotype.
- Accurate genetic diagnosis aids in genetic counseling and prognosis for affected families.