Prenatal diagnosis of congenital adrenal hyperplasia (21-hydroxylase deficiency) by HLA typing.


Congenital adrenal hyperplasia (C.A.H.) due to 21-hydroxylase deficiency is an HLA-linked recessive disorder. HLA-A and B antigens are expressed on amniotic cells. Prenatal diagnosis of C.A.H. by HLA typing of families and amniotic cells was attempted in two at-risk families. In one family HLA typing indicated that the fetus would have C.A.H., and this… (More)


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