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Testicular regression syndromes
| Embryonal period |
Fetal period |
||||
|---|---|---|---|---|---|
| Early | Late | Early | Middle | Late | |
| Müllerian structures | Vestigial | Differentiated | Differentiated/vestigial | Vestigial | Vestigial |
| Wolffian structures | Vestigial | Vestigial | Vestigial/differentiated | Differentiated | Differentiated |
| External genitalia | Female | Female | Ambiguous | Ambiguous–male | Male |
