Mondo Description Congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency is a unique form of congenital adrenal hyperplasia (CAH) characterized by glucocorticoid deficiency, severe sexual ambiguity in both sexes and skeletal (especially craniofacial) malformations.

Uniprot Description A disorder resulting in a rare variant of congenital adrenal hyperplasia, with apparent combined P450C17 and P450C21 deficiency and accumulation of steroid metabolites. Affected girls are born with ambiguous genitalia, but their circulating androgens are low and virilization does not progress. Conversely, affected boys are sometimes born undermasculinized. Boys and girls can present with bone malformations, in some cases resembling the pattern seen in patients with Antley-Bixler syndrome.