Endocrine Abstracts

17β-hydroxysteroid dehydrogenase-3 (17βHSD3) deficiency is an autosomal recessive form of male pseudohermaphroditism due to impaired testicular conversion of androstenedione to testosterone. 46,XY homozygotes or compound heterozygotes for mutations of the HSD17B3 gene have testes and normally developed Wolffian duct derivatives, but they present with undervirilization of the external genitalia, which are often female. About twenty different mutations of the 17βH...