46,XX sex reversal with partial duplication of chromosome arm 22q.

Abstract

We present a case of 46,XX sex reversal in the absence of SRY but with partial duplication of chromosome 22q. The subject had multiple congenital anomalies but nearly complete masculinization of the external genitalia. Our case along with a previous case supports the existence of a gene on chromosome 22q that can trigger testis determination in the absence of SRY. We proposed that overexpression of the SOX10 gene at 22q13 might be the cause of sex reversal. We investigated 13 additional subjects with SRY-negative 46,XX sex reversal for microduplication of chromosome arm 22q in the region of SOX10 gene, but could not find evidence for it.

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@article{Seeherunvong200446XXSR, title={46,XX sex reversal with partial duplication of chromosome arm 22q.}, author={Tossaporn Seeherunvong and Erasmo M Perera and Yongli Bao and Paul J. Benke and Adelaida Benigno and Roger P. Donahue and Gary David Berkovitz}, journal={American journal of medical genetics. Part A}, year={2004}, volume={127A 2}, pages={149-51} }