A CASE WITH EMANUEL SYNDROME: EXTRA DERIVATIVE 22 CHROMOSOME INHERITED FROM THE MOTHER
İkbal Atli E*, Gürkan H, Vatansever Ü, Ulusal S, Tozkir H
*Corresponding Author: Emine İkbal Atli, Ph.D., Department of Medical Genetics, Faculty of Medicine, Trakya University, Campus Of Balkan, D100 Street, Edirne 22030, Turkey. Tel: +90-554-253-4030. Fax: +90- 284-223-4201. E-mail: emine.ikbal@gmail.com
page: 77
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Abstract

Emanuel syndrome (ES) is a rare chromosomal disorder that is characterized by multiple congenital anomalies and developmental disabilities. Affected children are usually identified in the newborn period as the offspring of balanced (11;22) translocation carriers. Carriers of this balanced translocation usually have no clinical symptoms and are often identified after the birth of offspring with an unbalanced form of the translocation, the supernumerary der(22) t(11;22) syndrome. We report a 3-year-old boy with the t(11;22)(q23;q11) chromosome, transmitted in an unbalanced fashion from his mother. He has several developmental delays; he is not independently ambulatory and language is significantly impaired. Using his peripheral blood, karyotyping was performed to define his multiple congenital anomalies, revealing the following chromosomal abnormality: 47,XY,+der(22)t(11;22)(q23.3;q11.2). To ascertain the origin and trait of this supernumerary marker chromosome [der(22)t(11;22)(q23.3;q11.2)], karyotyping of his parents was performed. The mother was found to be a balanced carrier: 46,XX,t(11;22) (q23.3; q11.2).



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