XO/XY Chromosome Mosaicism

Abstract
A phenotypic female with clitoral enlargement was shown by chromosomal analysis of peripheral blood leukocytes to be an XO/XY mosaic. Histologically, the intra-abdominal gonads were dysgenetic testes. Tissue cultures from 2 areas of skin, uterus and both gonads revealed mosaicism in only 2 of the sites (one area of skin and one gonad). The remaining tissues were XO.

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