Sex chromosomal mosaicism in the gonads of patients with disorders of sex development /
Shereen Adel Abdelkader Sayed
Sex chromosomal mosaicism in the gonads of patients with disorders of sex development / الطراز الجينى المختلط فى الغدد الجنسية لمرضى خلل التكوين الجنسى Shereen Adel Abdelkader Sayed ; Supervised Hoda Mohamed Abdelghany , Alaa Khalil Kamel , Manal Mohamed Makhlouf - Cairo : Shereen Adel Abdelkader Sayed , 2014 - 173 P. : facsimiles ; 25cm
Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Clinical and Chemical Pathology
The phenotypic variability observed in DSD patients depends on many factors including the presence of SRY gene, the structural rearrangement and the presence of chromosomal mosaicism, especially 45, X cell line. The phenotypic sex strongly depends on the percentage of Y chromosome and 45, X cells in the developing gonads. The aim of work was to detect sex chromosomal mosaicism in gonads and to elucidate correlation between phenotype and karyotype of patients. We reported on ten patients with variable presentations of disorders of sex development (DSD) including ambiguous genitalia, primary amenorrhea and short stature. Conventional cytogenetics studies and fluorescence in situ hybridization (FISH) on peripheral blood and gonadal tissue was performed. Non mosaic chromosomal constitution in peripheral blood of five patients was detected, and five patients exhibited mosaic cell pattern associated with different types of sex chromosomal abnormalities including 45,X, isodicentric Y chromosome, X;Y translocation
DSD: Disorders of Sex Development Gonadal mosaicism GTG banding
Sex chromosomal mosaicism in the gonads of patients with disorders of sex development / الطراز الجينى المختلط فى الغدد الجنسية لمرضى خلل التكوين الجنسى Shereen Adel Abdelkader Sayed ; Supervised Hoda Mohamed Abdelghany , Alaa Khalil Kamel , Manal Mohamed Makhlouf - Cairo : Shereen Adel Abdelkader Sayed , 2014 - 173 P. : facsimiles ; 25cm
Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Clinical and Chemical Pathology
The phenotypic variability observed in DSD patients depends on many factors including the presence of SRY gene, the structural rearrangement and the presence of chromosomal mosaicism, especially 45, X cell line. The phenotypic sex strongly depends on the percentage of Y chromosome and 45, X cells in the developing gonads. The aim of work was to detect sex chromosomal mosaicism in gonads and to elucidate correlation between phenotype and karyotype of patients. We reported on ten patients with variable presentations of disorders of sex development (DSD) including ambiguous genitalia, primary amenorrhea and short stature. Conventional cytogenetics studies and fluorescence in situ hybridization (FISH) on peripheral blood and gonadal tissue was performed. Non mosaic chromosomal constitution in peripheral blood of five patients was detected, and five patients exhibited mosaic cell pattern associated with different types of sex chromosomal abnormalities including 45,X, isodicentric Y chromosome, X;Y translocation
DSD: Disorders of Sex Development Gonadal mosaicism GTG banding