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Acquired hypogonadotropic hypogonadism (AHH) is a postnatal onset of a GnRH releasing disorder and/or pituitary gonadotroph cell disorder. [4] There are many causes of AHH, mostly due to structural lesions or functional abnormalities involving the HPG axis such as sarcoidosis , lymphocytic hypophysitis , pituitary adenomas , craniopharyngiomas ...
Functional hypothalamic amenorrhea (FHA) is a form of amenorrhea and chronic anovulation [1] and is one of the most common types of secondary amenorrhea. [2] It is classified as hypogonadotropic hypogonadism. [3] It was previously known as "juvenile hypothalamosis syndrome," prior to the discovery that sexually mature females are equally ...
In females, functional hypogonadotropic hypogonadism (FHH) (or functional hypothalamic amenorrhea) is part of the differential diagnosis for GnRH insensitivity. The presence of predisposing factors like excessive exercise, weight loss, or psychological stress point towards the diagnosis of FHH rather than GnRH insensitivity.
Hypogonadism means diminished functional activity of the gonads—the testicles or the ovaries—that may result in diminished production of sex hormones. Low androgen (e.g., testosterone ) levels are referred to as hypoandrogenism and low estrogen (e.g., estradiol ) as hypoestrogenism .
Kallmann syndrome is a form of a group of conditions termed hypogonadotropic hypogonadism. [1] To distinguish it from other forms of hypogonadotropic hypogonadism, Kallmann syndrome has the additional symptom of a total lack of sense of smell (anosmia) or a reduced sense of smell.
The genetic and molecular basis of idiopathic hypogonadotropic hypogonadism. To date, at least 25 different genes have been implicated in causing gonadotropin-releasing hormone (GnRH) deficiency conditions such as Kallmann syndrome (KS) or other forms of congenital hypogonadotropic hypogonadism (CHH) through a disruption in the production or activity of GnRH.
In males, a type of myopathy can result from androgen deficiency known as testosterone deficiency myopathy or (hypogonadotropic) hypogonadism with myopathy. Signs and symptoms include elevated serum CK , symmetrical muscle wasting and muscle weakness (predominantly proximal ), a burning sensation in the feet at night, waddling gait , and ...
The fertile eunuch syndrome or Pasqualini syndrome is a cause of hypogonadotropic hypogonadism caused by a luteinizing hormone deficiency. [1] It is characterized by hypogonadism with spermatogenesis. [2] Pasqualini and Bur published the first case of eunuchoidism with preserved spermatogenesis in 1950 in la Revista de la Asociación Médica ...