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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 .
Turner syndrome was first described independently by Otto Ulrich in 1930 and Henry Turner in 1938. [29] 46,XX pure gonadal dysgenesis was first reported in 1960. [29] 46,XY pure gonadal dysgenesis, also known as Swyer syndrome, was first described by Gim Swyer in 1955. [29]
Meanwhile, XY gonadal dysgenesis is known as PGD, 46,XY or Swyer syndrome. Patients with PGD have a normal chromosomal constellation but may have localized genetic alterations. XX gonadal dysgenesis is related to Swyer syndrome, since both conditions have the same phenotype and clinical issues; however in Swyer syndrome the karyotype is 46,XY ...
Men with mild androgen insensitivity syndrome may have reduced fertility. Mixed gonadal dysgenesis – a condition of unusual and asymmetrical gonadal development leading to an unassigned sex differentiation. A number of differences have been reported in the karyotype, most commonly a mosaicism 45,X/ 46,XY. [52]
46, XY gonadal dysgenesis, also known as Swyer syndrome 46, XX male syndrome , also known as de la Chapelle syndrome In this list, the karyotype is summarized by the number of chromosomes, followed by the sex chromosomes present in each cell.
Swyer syndrome. A form of complete gonadal dysgenesis, mostly due to mutations in the first step of sex determination; the SRY genes. A 5-alpha-reductase deficiency results in atypical development characterized by female phenotype or undervirilized male phenotype with development of the epididymis , vas deferens , seminal vesicle , and ...
Algerian welterweight Imane Khelif will fight for gold in women's Olympic boxing Friday. But the 25-year-old boxer's time in Paris has become the latest focus of a global debate about gender and ...
XX male syndrome, also known as de la Chapelle syndrome, is a rare intersex condition in which an individual with a 46,XX karyotype develops a male phenotype. [2] Synonyms for XX male syndrome include 46,XX testicular difference of sex development (or 46,XX DSD) [3] [4] [5] [6]