vanishing testes syndrome

vanishing testes syndrome
a disorder in males characterized by absence of testes and gonadal tissue (usually unilateral but sometimes bilateral) and a small penis; when it is bilateral the individual will not undergo puberty or adolescent masculinization without testosterone supplements. The testes are thought to have been present in the embryo but to have “vanished” before completion of male sexual differentiation. Called also embryonic testicular regression s.

Medical dictionary. 2011.

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