Bilateral anorchia: discordance in monozygotic twins.
The bilateral absence of testes is described in one of two otherwise healthy and well-developed 12-year-old identical twin boys. The twins' father has only one palpable testis. The occurrence of complete anorchia in only one of otherwise identical twins constitutes relevant new data for considering the etiology of this rare condition and in assaying the role of the testis in growth and development between birth and puberty.
D001827:Body Height; D002648:Child; D004200:Diseases in Twins; D006801:Humans; D008297:Male; D013737:Testis / Q000002:abnormalities / Q000502:physiology; D013739:Testosterone / Q000097:blood
D013739:Testosterone