Idiopathic 46,XY Differences of Sex Development

**Semantic type:** Congenital Abnormality

**Definition:** Conditions affecting individuals whose karyotype is 46,XY that is characterized by atypical development of the internal or external sex structures, or the gonads, and in whom no genetic, environmental, or biochemical causation can be established.

**Synonyms:** - Idiopathic 46,XY Disorder of Sex Development