DiGeorge syndrome is polytopic developmental field defect which is usually associated with 22q11.2 microdeletion. However, this phenotype may be caused by other conditions. We report such a case and briefly review these alternative causes for this particular phenotype.
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Genes (Basel)
January 2025
Section of Cytogenetics, Oncology Department, Azienda Ospedaliero-Universitaria Pisana, 56126 Pisa, Italy.
22q11.2 is a region prone to chromosomal rearrangements due to the presence of eight large blocks of low-copy repeats (LCR22s). The 3 Mb 22q11.
View Article and Find Full Text PDFSemin Thromb Hemost
January 2025
Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland.
22q11.2 deletion syndrome (22q11.2DS) is one of the most common congenital malformation syndromes resulting from disrupted embryonic development of pharyngeal pouches.
View Article and Find Full Text PDFTransl Psychiatry
January 2025
Ear Institute, University College London, London, UK.
The 22q11.2 deletion is a risk factor for multiple psychiatric disorders including schizophrenia and also increases vulnerability to middle-ear problems that can cause hearing impairment. Up to 60% of deletion carriers experience hearing impairment and ~30% develop schizophrenia in adulthood.
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
January 2025
General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, China.
Objective: To explore the clinical phenotype, pregnancy outcome and follow-up of fetuses with 15q11.2BP1-BP2 microdeletions in order to provide a basis for prenatal and reproductive consultation.
Methods: From March 2019 to December 2023, 20 fetuses who were diagnosed with 15q11.
Rev Alerg Mex
December 2024
Departamento de Inmunología, Hospital Infantil de Especialidades de Chihuahua; Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua.
Background: 22q11 deletion syndrome consists of a variable grouping of phenotypic features and immunological defects secondary to the loss of genetic material located in the 22q11.2 band. The 22q11 deletion spectrum encompasses different syndromes related to the same etiology and with overlapping anomalies, including DiGeorge syndrome, velocardiofacial syndrome, among others.
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