Mosaic Isodicentric Y Chromosome in a Patient with Mixed Gonadal Dysgenesis
2015
Here, we report a male with mixed gonadal dysgenesis and a mosaic karyotype, 45,X(49)/47,X,idic(Y) (q11.2)x2(4)/46,X,idic(Y) (q11.2)(47). We used fluorescence in situ hybridization (FISH) and polymerase chain reaction (PCR) to determine the structural rearrangement and genetic content of the Y chromosome. Our findings emphasize the importance of the use of a combination of cytogenetic and molecular genetics techniques during characterization of a patient with a derivative Y chromosome before any general conclusions can be reached concerning the relative effects of the Y chromosome abnormality and mosaicism on sexual differentiation.
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