<unk>  is an example of hypogonadism (decreased functioning of the sex hormone-producing glands) caused by a deficiency of gonadotropin-releasing hormone (GnRH), which is created by the hypothalamus.<unk>  is also known as hypothalamic hypogonadism, familial hypogonadism with anosmia, or hypogonadotropic hypogonadism, reflecting its disease mechanism.<unk>  is a form of secondary hypogonadism reflecting the fact the primary cause of the defect in sex hormone production lies within the pituitary and hypothalamus rather than a physical defect of the testes or ovaries themselves.<unk>  was described in 1944 by Franz Josef<unk> , a German-American geneticist. However, others - such as the Spanish doctor Aureliano Maestre de San Juan - had noticed a correlation between anosmia and hypogonadism in 1856.
The most well known person who has<unk>  in modern times is the jazz vocalist Jimmy Scott. In 2004, Canadian writer Brian Brett published a memoir, Uproar's Your Only Music, about growing up with<unk> .
Kallmann syndrome
Kostmann syndrome
Wolman disease
Kallman syndrome
Turner syndrome
Angelman syndrome
Hanhart syndrome
Klinefelter's syndrome