ICD-11 definition : A rare 46,XY disorder of gonadal development characterized by congenital complete
absence of testicular tissue in an individual with an otherwise male phenotype and
normal karyotype. In addition, a small penis is a frequent finding in anorchid patients.
Typical hormonal characteristics are elevated basal levels of gonadotropins (especially
FSH (follicle-stimulating hormone), low concentration of testosterone, and lack of
increase of plasma testosterone in response to hCG (human chorionic gonadotropin)
administration. The GnRH (gonadotropin-releasing hormone) stimulation test induces
a prolonged increase in FSH and LH (luteinizing hormone) levels.;
A rare 46,XY disorder of gonadal development characterized by congenital complete
absence of testicular tissue in an individual with an otherwise male phenotype and
normal karyotype. In addition, a small penis is a frequent finding in anorchid patients.
Typical hormonal characteristics are elevated basal levels of gonadotropins (especially
FSH (follicle-stimulating hormone), low concentration of testosterone, and lack of
increase of plasma testosterone in response to hCG (human chorionic gonadotropin)
administration. The GnRH (gonadotropin-releasing hormone) stimulation test induces
a prolonged increase in FSH and LH (luteinizing hormone) levels.
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