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In men, it causes impaired muscle and body hair development, gynecomastia, decreased height, erectile dysfunction, and sexual difficulties. If hypogonadism is caused by a disorder of the central nervous system (e.g., a brain tumor), then this is known as central hypogonadism.
As of 2016, the International Society for the Study of the Aging Male defines late-onset hypogonadism as a series of symptoms in older adults related to testosterone deficiency that combines features of both primary and secondary hypogonadism; the European Male Aging Study (a prospective study of ~3000 men) [10] defined the condition by the presence of at least three sexual symptoms (e.g ...
In 1914, Franz Weidenreich performed autopsies on cadavers of 10 people who had had anosmia, uncovering hypogonadism in three and postulating a syndromic association. [ 11 ] The syndrome is named for Franz Josef Kallmann , a German - American geneticist , who, along with colleagues, described three family clusters of the syndrome in a 1944 ...
In up to 10–20% of cases, patients can exhibit sustained fertility and steroid production after therapy, resulting in hypogonadotropic hypogonadism reversal. The mechanism for this reversal is unknown but there is believed to be some neuronal plasticity within GnRH releasing cells. [8]
Hypergonadotropic hypogonadism (HH), also known as primary or peripheral/gonadal hypogonadism or primary gonadal failure, is a condition which is characterized by hypogonadism which is due to an impaired response of the gonads to the gonadotropins, follicle-stimulating hormone (FSH) and luteinizing hormone (LH), and in turn a lack of sex steroid production. [1]
XY complete gonadal dysgenesis, also known as Swyer syndrome, is a type of defect hypogonadism in a person whose karyotype is 46,XY. Though they typically have normal vulvas, [1] the person has underdeveloped gonads, fibrous tissue termed "streak gonads", and if left untreated, will not experience puberty.
Generally, diseases outlined within the ICD-10 codes N40-N51 within Chapter XIV: Diseases of the genitourinary system should be included in this category. Subcategories This category has the following 7 subcategories, out of 7 total.
Isolated hypogonadotropic hypogonadism (IHH), also called idiopathic or congenital hypogonadotropic hypogonadism (CHH), as well as isolated or congenital gonadotropin-releasing hormone deficiency (IGD), is a condition which results in a small subset of cases of hypogonadotropic hypogonadism (HH) due to deficiency in or insensitivity to gonadotropin-releasing hormone (GnRH) where the function ...