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Topic: Virilization


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In the News (Fri 17 Feb 12)

  
  MedlinePlus Medical Encyclopedia: Virilization
Virilization is the development of male sex characteristics in a female.
Virilization may result from too much testosterone production in the endocrine glands or from the use of anabolic steroids.
Female newborns may also show signs of virilization if they or their mothers have a condition known as congenital adrenal hyperplasia.
www.nlm.nih.gov /medlineplus/ency/article/002339.htm   (0 words)

  
  Reference.com/Encyclopedia/Virilization
Virilization is most commonly used in three medical and biology of gender contexts: prenatal sexual differentiation, the postnatal changes of normal male puberty, and excessive androgen effects in girls or women.
In the prenatal period, virilization refers to closure of the perineum, thinning and rugation of the scrotum, growth of the phallus, and closure of the urethral groove to the tip of the penis.
Prenatal virilization of genetic females and undervirilization of genetic males are common causes of ambiguous genitalia and intersex conditions.
www.reference.com /browse/wiki/Virilization   (519 words)

  
 Virilization: Adrenal Gland Disorders: Merck Manual Home Edition
Virilization is the development of exaggerated masculine characteristics, usually in women, often as a result of the adrenal glands overproducing androgens (testosterone and similar hormones).
The most common cause of virilization is an enlargement of the hormone-producing portions of the adrenal cortex (adrenal hyperplasia).
Symptoms of virilization include excess facial and body hair (hirsutism), baldness, acne, deepening of the voice, increased muscularity, and an increased sex drive.
www.merck.com /mmhe/sec13/ch164/ch164d.html   (0 words)

  
 Virilize definition - Medical Dictionary definitions of popular medical terms
Virilize: To cause a female to develop male characteristics such as a deepened voice, an increase in body and facial hair, a decrease in breast size, an enlargement of the clitoris, and "male-pattern" baldness.
The cause of virilization in most cases is an excess of male hormones in a female.
The noun form of "virilize" is "virilization." "Virilize" and "virilization" are not to be confused with "masculinize" and "masculinization" which refer to the development of male characteristics in a male on a normal schedule during or on a precocious schedule in a younger boy.
www.medterms.com /script/main/art.asp?articlekey=12466   (431 words)

  
  Virilization - Health Encyclopedia News Story - WRC | Washington
Virilization refers to the development of male sex characteristics in a female.
This may include an increase in body hair, facial hair, a deepening of the voice, male-pattern baldness, and clitoral enlargement.
Virilization may result from excessive testosterone production in the endocrine glands or from the use of anabolic steroids.
www.nbc4.com /encyclopedia/6863114/detail.html   (367 words)

  
 Virilization - Biocrawler   (Site not responding. Last check: )
In the prenatal period, virilization refers to closure of the perineum, thinning and rugation of the scrotum, growth of the phallus, and closure of the urethra to the tip of the penis.
Prenatal virilization and undervirilization are common causes of ambiguous genitalia and intersex conditions.
Typical effects of virilization in children are pubic hair, accelerated growth and bone maturation, increased muscle strength, acne, adult body odor, and sometimes growth of the penis.
www.biocrawler.com /encyclopedia/Virilization   (361 words)

  
 Hirsutism - New Treatments, January 2, 2007
Virilization is less common than hirsutism and is more often associated with a potentially serious disorder such as an ovarian or adrenal tumor.
On rare occasion signs of virilization (e.g., clitorimegaly) may develop in women with PCOS; this usually occurs as a result of particularly high rates of testosterone secretion in women with stromal hyperthecosis, a condition in which islands of luteinized thecal cells are present in the ovarian stroma distant from ovarian follicles.
One cause of hirsutism, amenorrhea, and signs of virilization is the use of androgens for the purpose of body-building or in treatment of diminished libido or menopause.
www.ccspublishing.com /journals3a/hirsutism.htm   (645 words)

  
 Korean Journal of Radiology
Virilization during pregnancy is a rare clinical event, and it is most commonly caused by pregnancy luteoma or hyperreactio luteinalis.
In contrast to pregnancy luteoma, hyperreactio luteinalis is characterized by bilateral ovarian enlargement that is due to the presence of numerous luteinized follicular cysts.
No cases of virilization of the newborn have been reported in hyperreactio luteinalis, even when there is virilization of the mother and elevated cord blood androgen levels (7).
www.kjronline.org /abstract/view_articletext.asp?year=2005&page=44   (1406 words)

  
 RGSDC - Information For Physicians
Deficiency of 17,20-lyase impairs the ability to synthesize androgens and estrogens and causes male pseudohermaphroditism at birth and failure to virilize at puberty.
Estimates of incidence of CAIS vary from 1 in 20,000 to 1 in 64,000 individuals with a 46,XY karyotype, and the disorder is the third most common form of primary amenorrhea after gonadal dysgenesis and congenital absence of the uterus in phenotypic women.
Virilization at the time of expected puberty, which can be striking, is either mediated by the circulating dihydrotestosterone derived from the unaffected 5 a -reductase isoenzyme (type 1) or by high testosterone concentrations over a long period of time.
rarediseasesnetwork.epi.usf.edu /rgsdc/physicians/index.htm   (1993 words)

  
 PATHOPHYSIOLOGY
The simple virilizing and salt-wasting forms of 21-hydroxylase deficiency are characterized by excess adrenal Deficiency of 21-hydroxylase occurs in three forms: 1) simple virilizing, 2) salt-wasting, and 3) nonclassical.
The simple virilizing and salt-wasting forms of 21-hydroxylase deficiency are characterized by excess adrenal androgen biosynthesis in utero, which causes prenatal virilization of the genetic female and postnatal virilization of both boys and girls.
It is not possible to distinguish between simple virilizing classical 21-OHD and salt-wasting classical 21-OHD based solely on the degree of virilization of an affected female at birth.
www.endotext.org /Pediatrics/pediatrics8a/ch01s04.html   (636 words)

  
 Virilization - Health Encyclopedia
Virilization refers to the development of male sex characteristics in a female.
This may include an increase in body hair, facial hair, a deepening of the voice, male-pattern baldness, and clitoral enlargement.
Virilization may result from excessive testosterone production in the endocrine glands or from the use of anabolic steroids.
www.nbc5.com /encyclopedia/6863114/detail.html   (358 words)

  
 Endotext.com - Endocrinology Of Male Reproduction, Cryptorchidism and Hypospadias   (Site not responding. Last check: )
In 1974 a rare autosomal form of male pseudohermaphroditism was described in 2 families; one from Dallas (175), and one from the Dominican Republic (176), in these cases, the underlying defect was shown to be a deficiency in the conversion of testosterone to its more active metabolite, dihydrotestosterone.
Three cases adopted children and in one case in vitro fertilization using the patient's sperm cells resulted in twin siblings, a boy and a girl whose paternity was confirmed by microsatellite studies (184).
A timing defect leading to lack of testosterone secretion at the critical period in which the virilization of the genitalia occurs can cause male pseudohermaphroditism, however, this is impossible to determine later in postnatal life with the methods available today.
www.endotext.org /pediatrics/pediatrics11/pediatrics11_2.htm   (5393 words)

  
 AnabolicReferenceGuide
Virilization refers to attaining the characteristics of a mature male.
Occasionally, a woman who is suffering virilizing affects from steroid use may be able to arrest the symptoms by using an anti-androgen like Aldactone.
Since the virilizing effects women suffer from using anabolic steroids tend to be permanent, it is prudent to use caution at all times.
groups.msn.com /AnabolicReferenceGuide/sexualeffects.msnw   (1328 words)

  
 Estrogen Maternal Virilization   (Site not responding. Last check: )
The deficiency caused maternal virilization during pregnancy and pseudohermaphroditism of female fetus from fetal masculinization and the pregnant woman from virilization.
This condition of estrogen Estriol is an estrogen derived from the placental aromatization of fetal adrenal androgens.
test Caused by prenatal exposure to non salt losing form diagnosis is often delayed until virilization treatment (European investigators have proposed a maternal dose administered to inhibit the conversion of androgen to estrogen with an increase in the size of the maternal zona fasciculate (219).
www.immigration-lawfirms.com /estrogen-maternal-virilization.htm   (327 words)

  
 Virilization of the Male Pouch Young of the Tammar Wallaby Does Not Appear to be Mediated by Plasma Testosterone or ...
Virilization of the Male Pouch Young of the Tammar Wallaby Does Not Appear to be Mediated by Plasma Testosterone or Dihydrotestosterone -- Wilson et al.
Virilization of the Male Pouch Young of the Tammar Wallaby Does Not Appear to be Mediated by Plasma Testosterone or Dihydrotestosterone
are responsible for virilization of the Wolffian ducts, urogenital
www.biolreprod.org /cgi/content/full/61/2/471   (3751 words)

  
 virilization
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my002.info /virilization   (383 words)

  
 Progestin Induced Virilization | Intersex Society of North America
If the timing is right, the genitals are virilized with effects ranging from enlarged clitoris to the development of a complete phallus and the fusing of the labia.
In all cases ovaries and uterus or uterine tract are present, though in extreme cases of virilization there is no vagina or cervix, the uterine tract being connected to the upper portion of the urethra internally.
In other words, XX people affected in-utero by virilizing hormones can be born into a continuum of sex phenotype which ranges from “female with larger clitoris”; to “male with no testes”;.
www.isna.org /faq/progestin.html   (651 words)

  
 SafeFetus.com
Teratogenic in human causing virilization with ambigeous genitalia of female fetuses exposed to the drug in utero, without major birth defects.
Virilization of the behavior of young females exposed in utero to danazol has been reported.
Use by nursing mothers is not recommended because of possible androgenic effects in the infant, such as precocious effects in the infant, such as precocious sexual development in males and virilization in females.
www.safefetus.com /DrugDetail.asp?DrugId=308&TradeName=Cyclomen&TradeId=3793   (147 words)

  
 Virilization
Virilization refers to the development of male sex characteristics in a female.
This may include an increase in body hair, facial hair, a deepening of the voice, male-pattern baldness, and clitoral enlargement.
Virilization may result from excessive testosterone production in the endocrine glands or from the use of anabolic steroids.
www.healthscout.com /ency/1/002339.html   (0 words)

  
 Virilization   (Site not responding. Last check: )
Virilization news vertical portal can now be syndicated quickly and easily using our new Really Simple Syndication feeds.
Earthtimes.org -Evaluations of androgen excess, virilization, intersex disorders, or contrasexual maturation are the only indications for T measurement in girls.
For any further understanding that could lead to the prevention, treatment, and/or cure of the disorders, we recommend that affected individuals seek the advice or counsel of his or her own personal physician(s).
virilization.diseasemap.com /section_3202_1.html   (302 words)

  
 CEL Clinical Case Study #2
Virilizing tumors of the adrenal gland are relatively rare entities not commonly seen in clinical practice.
The presentation of precocious virilization however, is not uncommon in children and can present from birth up through puberty.
Although rare, there is a bimodel peak in the age of incidence of virilizing adrenal tumors in the first and fourth decades of life.
www.hmc.psu.edu /endo/clincorr/clincor2.htm   (1498 words)

  
 Virilization of Young Children After Topical Androgen Use by Their Parents -- Kunz et al. 114 (1): 282 -- Pediatrics
Virilization of Young Children After Topical Androgen Use by Their Parents -- Kunz et al.
Virilization of Young Children After Topical Androgen Use by Their Parents
Virilization in young children is uncommon and is produced by
pediatrics.aappublications.org /cgi/content/full/114/1/282   (1630 words)

  
 JPMA :::   (Site not responding. Last check: )
A milder from (simple virilizing) may present as ambiguous genitalia and marked virilization of the newborn female often causing uncertainty in sex assignment.3 A non-classical form (late-onset) has also been described that presents as precocious puberty in later childhood.
Female patients were classified as having the simple virilizing (SV) form of CAH if they had prenatal virilization of external genitalia, but no signs of severe mineralocorticoid deficiency.
Features of virilization like clitoromegaly (23 cases), persistence of urogenital sinus (17 cases), ventral binding, fusion of labioscrotal fold, and scrotalization of skin (12 cases), were seen.
jpma.org.pk /jpma/10Oct04/fulltext5.htm   (1644 words)

  
 Virilization - WrongDiagnosis.com
Virilization (medical condition): Increased male physical appearance in females
Virilization: abnormal development of secondary male sexual characteristics such as facial hair; in females, can be caused by androgen secretion by adrenal cortex.
Virilization: Another name for Masculinisation (or close medical condition association).
www.wrongdiagnosis.com /medical/virilization.htm   (0 words)

  
 Hirsutism - causes and treatments
Rarer, and more serious, endocrine causes of hirsutism and virilization include congenital adrenal hyperplasia, Cushing's syndrome and virilization tumours of the ovary and adrenal.
If a virilization tumour is suspected clinically or after investigation, then more complex tests may include dexamethosone suppression tests, CT or MRI or adrenals, and selective venouse sampling catheters.
Most patients presenting with a combination of hirsutism and menstrual disturbances will be shown to have polycystic ovary sydrome, but the rarer alternative diagnoses should always be born in mind, and excluded with appropriate investigations if suspected.
hirsutism.homestead.com   (1264 words)

  
 Virilization
Virilization refers to the development of male sex characteristics in a female.
This may include an increase in body hair, facial hair, a deepening of the voice, male-pattern baldness, and clitoral enlargement.
Virilization may result from excessive testosterone production in the endocrine glands or from the use of anabolic steroids.
www.adam.com /democontent/hie/ency/article/002339.htm   (138 words)

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