alexa Two SRY-negative XX male brothers without genital ambiguity.
Clinical Research

Clinical Research

Journal of Clinical Case Reports

Author(s): Zenteno JC, Lpez M, Vera C, Mndez JP, KofmanAlfaro S

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Abstract We report a Mexican family in which two sibs were identified as "classic" XX males without genital ambiguities. Molecular studies revealed that both patients were negative for several Y sequences, including SRY. A review of familial cases disclosed that this is the first family where a complete male phenotype was observed in Y-negative XX male non-twin brothers. These data suggest that an inherited loss-of-function mutation, in a gene participating in the sex-determining cascade, can induce normal male sexual differentiation in the absence of SRY.
This article was published in Hum Genet and referenced in Journal of Clinical Case Reports

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