Haploinsufficiency of the DMRT Gene Cluster in a Case with 46,XY Ovotesticular Disorder of Sexual Development

• Main Authors: Metin Eser, Akif Ayaz
• Format: Article
• Language: English
• Published: Galenos Publishing House 2018-05-01
• Series: Balkan Medical Journal
• Subjects: Genetic hybridization; haploinsufficiency; ovotesticular disorder of sex development
• Online Access: http://balkanmedicaljournal.org/text.php?lang=en&id=1919

Background: Ovotesticular disorder is characterized by the presence of testicular and ovarian tissues in the same individual. Single gene mutations in SRY, SOX9, DMRT1 and DAX1 can lead to ovotesticular disorder of sexual development. Case Report: Herein, we report a 3-month-old phenotypically female baby in whom differentiated tissues of both Müllerian and Wolffian ducts were detected on pathological analysis of laparoscopic biopsy material. Chromosomal analysis observed 46,XY, der(9)t(3;9)(p25;p24) with deletion of 9p24.3p23 including the DMRT gene cluster and duplication of 3p26.3p24.3 on array comparative genomic hybridisation. Conclusion: In support of previous literature, we found that haploinsufficiency of the DMRT gene cluster leads to ovotesticular disorder of sexual development. In addition, we emphasize that array comparative genomic hybridisation is an important technique in the molecular diagnosis of ovotesticular disorder of sexual.