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Swyer syndrome


Gonadal dysgenesis, XY female type; Gene map locus Xp22.11-p21.2; point mutations or deletions of the SRY gene *480000


This type of gonadal defect is characterized by a female phenotype, normal to tall stature, bilateral streak or dysgenetic gonads, and a 46,XY karyotype. This XY gonadal dysgenesis is a heterogenous condition with variant forms resulting from a structural abnormality on Y chromosome, a mutation in SRY gene or a mutation in autosomal genes. The syndrome is sometimes called "pure gonadal dysgenesis," but this designation may also refer to gonadal dysgenesis with a 46,XX karyotype (GONADAL DYSGENESIS, 46,XX).


Very frequent

May also include: Small fallopian tubes; Small uterus; Dysgenetic testes; Eunuchoid proportion; Absence of puberty.  Generalized edema or lymphedema


In females with delayed puberty, a pelvic ultrasound can be performed to confirm the presence or absence of ovaries.

Additionally, blood can be taken for a karyogram, which identifies the full set of chromoomes of the female. Females with Swyer syndrome will have both X and Y chromosomes rather than a set of two X chromosomes, which is normal for females.


Symptoms of Swyer syndrome can be treated with hormone replacement therapy (HRT), although surgical procedures are not uncommon. A typical HRT regimen includes estrogen and progesterone treatment to regulate menstruation and induce the female's secondary sexual characteristics. In some cases, the fibrous streak gonads are surgically removed as a precautionary measure against the development of gonadoblastomas a type of cancer of the gonads.

Pat O'Connor

May 30, 2008



Swyer syndrome


Alternative titles; symbols




Gonadal dysgenesis, XY female type, is associated with point mutations or deletions of the SRY gene (480000), but also in some cases with changes in the X chromosome.

At birth the patients with the XY female type of gonadal dysgenesis (Swyer syndrome) appear to be normal females; however, they do not develop secondary sexual characteristics at puberty, do not menstruate, and have 'streak gonads.' They are chromatin negative and have a 46,XY karyotype.


Affected sisters were reported by Cohen and Shaw (1965), and twins by Frasier et al. (1964). Sternberg et al. (1968) observed 3 cases, each in a different sibship of a family connected through normal females (proposita, maternal cousin, and maternal aunt). A high incidence of neoplasia (gonadoblastomas and germinomas) in streak gonads of patients with the XY karyotype was claimed by Taylor et al. (1966). 30 MEDLINE Neighbors

Patients are of normal stature and have no somatic stigmata of Turner syndrome except, of course, the lack of secondary sexual characteristics and streak gonads. In this condition, as in the testicular feminization syndrome (300068), it was at first unclear whether the gene that was responsible was on the X chromosome or on an autosome and expressed only in chromosomal males. Whether the abnormal gene directly suppresses testis-determining loci on the chromosome or blocks some early stage of testicular morphogenesis was also unknown. The sisters reported by Cohen and Shaw (1965) had a marker autosome, which was present also in the mother. They referred to another instance of XY 'sisters' with an abnormal autosome. One of their 2 patients had gonadoblastoma. 30 MEDLINE Neighbors

Two sisters reported by Fine et al. (1962) were of normal stature but were chromatin negative. One of these cases and 1 of those reported by Baron et al. (1962) had gonadoblastoma. In the last family, 2 'females' and a male were affected, the male showing no testes. All 3 sibs were sex-chromatin negative. Barr et al. (1967) reported on a sibship containing 2 genetic males. The first, who had male pseudohermaphroditism, was reared as a female; he developed signs of masculinization at puberty and had undescended but otherwise normal testes and small fallopian tubes. The second genetic male (180 cm tall) had pure gonadal dysgenesis with small uterus and streak gonads. This patient was at first thought to have the testicular feminization syndrome. An unaffected sister had a son with perineal hypospadias (urethral orifice at the base of the penis). The sibship reported by Chemke et al. (1970) was similar to that of Barr et al. (1967). Espiner et al. (1970) described 5 XY females in 3 sibships of 2 generations. They emphasized that the affected persons were unusually tall for females. The height of patients with XY gonadal dysgenesis (unusually great for females) is probably explained by androgen production in the streak gonad (Rose et al., 1974). Clitoromegaly is present in some cases. 30 MEDLINE Neighbors

Rushton (1979) pointed out that the streak gonads of this disorder differ from those of the 45,X Turner syndrome in the presence of calcification and the increased hazard of gonadoblastoma. Comparative studies of the frequency of gonadoblastoma in Turner mosaics with normal or rearranged Y chromosomes have suggested that the integrity of the Y chromosome, and in particular the presence of the distal fluorescent band Yqh, is required in these mosaics for the tumor to develop; no cases with distal deletions of the fluorescent band on Yq had been reported (Lukusa et al., 1986). 30 MEDLINE Neighbors

Moreira-Filho et al. (1979) suggested that there are 3 forms of Swyer syndrome (defined as streak gonads without other somatic features of the Turner syndrome and with a normal 46,XY karyotype). (1) Sporadic testicular agenesis syndrome (STAS) corresponds to H-Y negative Swyer syndrome. (2) Familial testicular agenesis syndrome (FTAS) is H-Y negative Swyer syndrome showing an X-linked recessive pedigree pattern. The mutation is probably homologous to that of the wood lemming. The phenotype of STAS and FTAS is identical even though the mutation is probably on the Y in STAS and on the X in FTAS. (3) In familial testicular dysgenesis syndrome (FTDS), the patients are H-Y positive and have a female phenotype and streak gonads; the streak gonads may contain testis-like tumoral structures. (See report of 3 sisters by Moreira-Filho et al. (1979) and cases of Wolf (1979).) The XY gonadal agenesis syndrome is a separate disorder (see 273250). 30 MEDLINE Neighbors

Passarge and Wolf (1981) pointed out that there are 2 groups of patients with XY gonadal dysgenesis (Swyer syndrome) and that each of these may be heterogeneous. One group is the H-Y antigen-positive form, which may represent a 'receptor disease.' The second is the H-Y antigen-negative form, which may be due to mutation in the H-Y generating system, either of the structural gene (presumably autosomal) or of a controlling gene (on the sex chromosomes). It may be only the H-Y antigen-positive cases that are at risk for gonadoblastoma or dysgerminoma. 30 MEDLINE Neighbors

See 233300 for discussion of the XX type of gonadal dysgenesis.


Simpson et al. (1981) reported 3 pedigrees of XY gonadal dysgenesis consistent with X-linked inheritance.

German et al. (1978) suggested that there is a gene on the X chromosome that blocks the testis-determining function of H-Y (which was then a leading candidate for TDF, testis-determining factor). However, it was later shown that TDF and H-Y antigen map to different parts of the Y chromosome with TDF being absent and H-Y antigen being present in XY females with Y short arm deletions (Simpson et al., 1987). See 278850. It appeared that 46,XY women had premature ovarian involution, with resulting 'streak gonads.' Families such as that of Barr et al. (1967) described above may indicate that the mutation is 'leaky.' The pedigree pattern was equally consistent with X-linked recessive or autosomal dominant inheritance. Indeed, Allard et al. (1972) observed transmission through a normal male, arguing for autosomal inheritance. 30 MEDLINE Neighbors

Nazareth et al. (1979) found H-Y positivity in a sporadic case occurring in an offspring of first-cousin parents. They favored recessive inheritance; see 233420.


De Arce et al. (1992) contributed further support of this hypothesis by demonstrating lack of gonadoblastoma in a 14-year-old girl who was a mosaic for 45X/46X-isodicentric Y. The anomalous Y chromosome showed no fluorescent distal Yq. In another patient, an 8-year-old girl with 45X/46XY karyotype, bilateral gonadoblastoma developed in her rudimentary ovaries at the age of 8. Her normal Y chromosome showed the characteristic distal fluorescence seen in her father's Y chromosome. Using Y chromosome probes, De Arce et al. (1992) demonstrated the Y chromosome in the paraffin blocks of the ovarian tissue of both girls. 30 MEDLINE Neighbors

Wachtel (1979) and Wachtel et al. (1980) suggested the existence of 4 'causes' of XY gonadal dysgenesis: (1) mutational suppression of H-Y structural genes by regulatory elements of the X chromosome or failure of an X-linked structural gene (in association with H-Y negative somatic cell phenotype); (2) failure of H-Y antigen to engage its gonadal receptor (in association with the H-Y positive somatic cell phenotype); (3) loss of the critical moiety of H-Y genes in deleted or translocated Y chromosome (in association with H-Y negative or intermediate somatic cell phenotype); and (4) presence of XY-XO mosaicism. 30 MEDLINE Neighbors

(Small deletions in the short arm of the Y chromosome can result in 46,XY females (Disteche et al., 1986). The 2 patients reported by Disteche et al. (1986) had some signs of Turner syndrome, including congenital lymphedema and primary amenorrhea with streak gonads, but were of normal height. One of the patients had bilateral gonadoblastoma. Several Y-chromosome-specific DNA probes were found to be deleted in the 2 patients. DNA analysis showed that the 2 deletions were different, but included a common overlapping region likely to contain the testis-determining factor (TDF) gene.) 30 MEDLINE Neighbors

Bernstein et al. (1980) observed an abnormal band on Xp in a 46,XY female and her 46,XY female fetal sib. Despite the presence of an intact Y chromosome, neither had testicular differentiation and both were H-Y negative. Giemsa banding suggested duplication of p21 and p22. The maternal grandmother, mother and a younger sister, all phenotypically normal, had a karyotype 46,XXp+. The proband had profound psychomotor retardation, and both sibs had multiple congenital malformations. (The second sib was ascertained by amniocentesis for prenatal diagnosis followed by elective abortion.) Multiple congenital anomalies in the proband included ventricular septal defect, cleft palate, asymmetric skull and facies, prognathic jaw, low-set ears, and clinodactyly V. When the girl died at 5 year of age, postmortem studies showed hypoplastic uterus and fallopian tubes. Histologic examination of the uterine adnexa revealed an area of ovarian stroma with scattered degenerative follicles. There was no testicular morphology, and the external genitalia were those of a normal 5-year-old female. The second affected sib, the product of a pregnancy terminated at 20 weeks, showed ovaries containing numerous follicles and germ cells. As in the proband, there was no evidence of testicular morphology. Wachtel (1998) referred to other cases of XY sex reversal in subjects with Xp duplication and chromosomal abnormalities resembling those in the family reported by Bernstein et al. (1980). This suggested occurrence of a gene on Xp, duplication of which can block development of the testis in an XY fetus. The gonads begin to develop as ovaries, but in the absence of the second X chromosome, the germ cells die, the follicles become atretic, and the ovaries degenerate. 30 MEDLINE Neighbors

Cytogenetic duplication of the X chromosome in males is a rare event usually characterized by a significant degree of phenotypic abnormality, which can include sex reversal despite an apparently normal Y chromosome. Arn et al. (1994) reported 2 half brothers with maternally inherited cytogenetic duplications of Xp and sex reversal; the absence of dysmorphic features in mother and children was thought to be because of the relatively small extent of the duplication. Comparison with previous reports allowed the putative sex reversing locus (SRVX) to be assigned to a 5- to 10-Mb segment between Xp22.11 and Xp21.2, which includes the DMD locus. The regional assignment may help in the isolation of SRVX mutations that may cause sex reversal in the 90% of sex-reversed women with XY gonadal dysgenesis who do not have detectable mutations of the SRY gene. 30 MEDLINE Neighbors


Mapping studies by hybridization to DNA from somatic cell hybrids containing various fragments of the X chromosome suggested that the sequence on the X chromosome maps to region Xp22.3-p21 (Page et al., 1987). Arn et al. (1994) mapped the SRVX gene to a 5- to 10-Mb segment between Xp22.11 and Xp21.2, which includes the DMD locus. 30 MEDLINE Neighbors


Page et al. (1987) cloned a 230-kb segment of the human Y chromosome thought to contain some or all of the TDF gene. The cloned region spanned the deletion in a female who carried all but 160 kb of the Y. Homologous sequences were found within the sex-determining region of the mouse Y chromosome. 30 MEDLINE Neighbors

Jager et al. (1990) demonstrated a mutation in SRY in 1 out of 12 sex-reversed XY females with gonadal dysgenesis who had no large deletions of the short arm of the Y chromosome. They found a 4-nucleotide deletion in the part of the SRY gene that encodes a conserved DNA-binding motif. A frameshift presumably led to a nonfunctional protein. Mutation occurred de novo, because the father had a normal SRY sequence. This is strong evidence that SRY is TDF. The de novo G-to-A mutation led to a change from methionine to isoleucine at a residue that lies within the putative DNA-binding motif of SRY and is identical in all SRY and SRY-related genes. (TDF and SRY are written Tdy and Sry in the mouse.) 30 MEDLINE Neighbors


Vilain et al. (1992) described a family in which all 5 XY individuals in 2 generations had a single basepair substitution resulting in an amino acid change in the conserved domain of the SRY open reading frame (480000.0004). A G-to-C change at nucleotide 588 resulted in substitution of leucine for valine. Three of the individuals were XY sex-reversed females and 2 were XY males. One of the males had 8 children; all were phenotypic females, 2 of whom were sex-reversed XY females carrying the mutation mentioned. Several models were proposed to explain association between a sequence variant in SRY and 2 alternative sex phenotypes. These included the existence of alleles at an unlinked locus. 30 MEDLINE Neighbors

McElreavey et al. (1992) described an XY sex-reversed female with pure gonadal dysgenesis who harbored a de novo nonsense mutation in SRY, which resulted directly in the formation of a stop codon in the putative DNA-binding motif. A C-to-T transition at nucleotide 687 changed a glutamine codon (CAG) to a termination codon (TAG); see 480000.0005. The patient, referred to as the 'propositus,' was a phenotypic female who presented at age 20 years for primary amenorrhea. Treatment with estrogen induced menstruation and slight enlargement of the breasts which were underdeveloped. Laparotomy showed 2 streak gonads without germ cells or remnants of tubes. 30 MEDLINE Neighbors

Harley et al. (1992) found point mutations in the region of the SRY gene encoding the high mobility group (HMG) box in 5 XY females. (The HMG box is related to that present in the T-cell-specific, DNA binding protein TCF-1 (142410).) In 4 cases, the binding activity of mutant SRY protein for the AACAAAG core sequence was negligible; in the fifth case, DNA binding was reduced. In the SRY gene in a 46,XY female, Muller et al. (1992) demonstrated an A-to-T transversion of nucleotide 684 in the open reading frame, resulting in a change of lysine (AAG) to a stop codon (UAG). The patient had gonadoblastoma. 30 MEDLINE Neighbors


Page et al. (1987) advanced several hypotheses to explain the existence of the X-linked locus. One hypothesis was inconsistent with the prevailing notion of a dominantly acting sex-determining factor unique to the Y chromosome and suggested that the X and Y loci are functionally interchangeable, that both are testis determining, and that the X locus is subject to X-chromosome inactivation. According to this model, sex is determined by the total number of expressed X and Y loci: a single dose is female determining, while a double (or greater) dose is male determining. The addition of an X-derived transgene to the genome of an XX embryo should result in testis differentiation, as long as that transgene is not subject to X inactivation. Increased expression of the X-chromosomal locus could explain the presence of testicular tissue in XX hermaphrodites and the rare Y-negative XX males, who lack the TDF locus of the Y chromosome. Although some XY females lack TDF as judged by Y-DNA analysis, others do not have discernible deletions. These unexplained XY females may have point mutations in TDF or in genes that function in conjunction with or downstream of TDF. The model mentioned above suggests that mutation in the X-chromosomal locus (at Xp22.3-p21) could cause XY embryos to develop as females. 30 MEDLINE Neighbors

However, Berta et al. (1990) and Jager et al. (1990) presented compelling evidence that the mutation in one type of XY female gonadal dysgenesis is not on the X but on the Y chromosome. In the human sex-determining region in a 35-kb interval near the pseudoautosomal boundary of the Y chromosome, there is a candidate gene for testis-determining factor, termed SRY ('sex-reversed, Y,' from mouse terminology), which is conserved and specific to the Y chromosome in all mammals tested (Sinclair et al., 1990); see 480000. (Cherfas (1991) stated that SRY stands for 'sex-determining region Y.' This is a nice presumption and perhaps in its present usage should be so considered, but it does not indicate the true historical derivation.) 30 MEDLINE Neighbors


Moreira-Filho et al. (1979) suggested that the H-Y antigen status in the Swyer syndrome may be a useful indicator of whether removal of the gonads is necessary to avoid malignancy.


Boczkowski (1976); Ghosh et al. (1978); Herbst et al. (1978); Judd et al. (1970); Koopman et al. (1991); Koopman et al. (1990); Mann et al. (1983); Wolf et al. (1980)


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Victor A. McKusick - updated : 11/4/1998


Victor A. McKusick : 6/4/1986


terry : 6/3/2004
carol : 3/17/2004


Swyer syndrome

[Pure gonadal dysgenesis with 46 XY karyotyping (Swyer's syndrome) with gonadoblastoma, dysgerminoma and embryonal carcinoma]

[Article in French]

Ben Romdhane K, Bessrour A, Ben Amor MS, Ben Ayed M.

Laboratoire d'anatomie et de cytologie pathologiques, Hopital Habib-Thameur, Tunis, Tunisie.

We report the clinical and pathologic findings in a 22-year-old woman with XY gonadal dysgenesis (Swyer's syndrome), who had bilateral gonadoblastoma associated on the right side with a dysgerminoma and an embryonal carcinoma. Swyer's syndrome is a distinct type of pure gonadal dysgenesis characterized by a 46 XY karyotype. It shows an abnormality in testicular differentiation. The patients are phenotypic females without stigmas of Turner syndrome. They have also elevated gonadotropins and hypoplastic gonads without germ-cells. The tumor that usually develops in Swyer's syndrome is gonadoblastoma. This tumor arises on dysgenesic gonads with a Y chromosome. Although gonadoblastoma is considered benign, the risk of malignant germ cell development is high. This means that these dysgenesic gonads should be removed surgically as soon as Swyer's syndrome is established.

Publication Types:

PMID: 3370322 [PubMed - indexed for MEDLINE]


Swyer syndrome


Swyer syndrome

D I S E A S E : Gonadal dysgenesis, XY female type

Clinical Signs

   abnormal ovaries (Very frequent sign)
   external female genitalia anomalies (Very frequent sign)
   late puberty/hypogonadism (Very frequent sign)
   small/atrophic testes (Very frequent sign)
   x-linked recessive inheritance (Very frequent sign)

Outpatient clinic(s)


Gonadoblastoma and dysgerminoma associated with 46,XY pure gonadal dysgenesis--a case report.

Kim SK, Sohn IS, Kim JW, Song CH, Park CI, Lee MS, Kim GW, Kim KR.

Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea.

Gonadoblastoma and dysgerminoma developed in a 24-year-old phenotypic female patient with 46,XY pure gonadal dysgenesis. This patient presented with primary amenorrhea. Clinical characteristics showed a typical stigmata of gonadal dysgenesis: primary amenorrhea, sexual infantilism, a small uterus and bilateral streak gonads. A 46,XY karyotype was made by lymphocyte culture. The patient was counseled to undergo a prophylactic bilateral gonadectomy, but she refused. Three years and three months after the initial diagnosis she felt a growing pelvic mass. Bilateral gonadectomy and total hysterectomy were performed. Histological examination revealed gonadoblastoma and dysgerminoma on both gonads. After surgery the patient received radiation therapy and also was started on hormone replacement therapy. Two years and two months after treatment by surgery the patient is well and free of recurrence.

Publication Types:

PMID: 8305146 [PubMed - indexed for MEDLINE]


46,XY pure gonadal dysgenesis with gonadoblastoma. A case report.

Chen FP, Chu KK, Soong YK.

Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Keelung, Taiwan, R.O.C.

46,xy pure gonadal dysgenesis is a rare disorder, which is characterized by female phenotype, infantile female external genitalia, deficient secondary sexual development, hypoplastic uterus and fallopian tubes, and streak gonads. A 17-year-old female phenotypic patient was admitted due to primary amenorrhea, who also had poor breast development, deficient axillary and pubic hairs, and infantile female external genitalia. Lymphocyte culture of peripheral blood for chromosome study revealed 46,XY normal male karyotype. Endocrine evaluation demonstrated low estrogen, high LH and FSH levels, and normal testosterone level of female range. According to the high risk of germ cell tumor occurrence in 46,XY gonadal dysgenesis, bilateral salpingo-oophorectomy and total hysterectomy were performed. Pathology of the left ovary revealed gonadoblastoma accidentally. Thereafter, she received regular hormone therapy and had generally felt well. Secondary sexual development was noted one year later.

Publication Types:

PMID: 1797370 [PubMed - indexed for MEDLINE]


Association of Turner's syndrome and Swyer's syndrome in the same family.

Copelli SB, Pasqualini T.

Division Endocrinologia, Hospital de Ninos Ricardo Gutierrez, Buenos Aires, Argentina.

We report two phenotypically and genetically different diseases in the same family. One patient presented with Turner phenotype as a result of chromosomal mosaicism 45,X/46,X, inv(X)(q21;q24) (30%/70%). Her father's sister showed 46,XY female gonadal dysgenesis (Swyer's syndrome) as a result of a point mutation in the SRY gene on her Y chromosome. DNA sequencing revealed a G-->C transversion (nucleotide position 693) resulting in a change from glycine95 to arginine (G95R). Here we report for the first time an association of Turner's syndrome and Swyer's syndrome in the same family.

Publication Types:

PMID: 10803875 [PubMed - indexed for MEDLINE]


Related Conditions


Abstracts and Studies


Swyer syndrome: presentation and outcomes - May 2008


A Case of 46,XY Pure Gonadal Dysgenesis with Loss of the Sex-Determining Region of Y Chromosome - April 2008


Swyer syndrome: A five-cases report - Jan 2008


Tumors of dysgenetic gonads in Swyer syndrome - Oct 2007


Abnormal streak gonads in 46,XY complete gonadal dysgenesis

Octo 2011

Swyer-James syndrome with peculiar course and ipsilateral pulmonary vein defect.

Successful pregnancy in a Swyer syndrome patient with preexisting hypertension.


Support Groups


Intersex Society of North America

The Intersex Society of North America (ISNA) is devoted to systemic change to end shame, secrecy, and unwanted genital surgeries for people born with an anatomy that someone decided is not standard for male or female.


Androgen Insensitivity Syndrome
Support Group (AISSG)


AIS Support Group Australia


List of International AIS Support Groups


Codes and external resources


ICD - 10

Q97.3 - Female with 46,XY karyotype

See also:


Indeterminate sex and pseudohermaphroditism
Excludes: pseudohermaphroditism:
· female, with adrenocortical disorder ( E25.- )
· male, with androgen resistance ( E34.5 )
· with specified chromosomal anomaly ( Q96-Q99 )
Q56.0 Hermaphroditism, not elsewhere classified
Q56.1 Male pseudohermaphroditism, not elsewhere classified
Male pseudohermaphroditism NOS
Q56.2 Female pseudohermaphroditism, not elsewhere classified
Female pseudohermaphroditism NOS
Q56.3 Pseudohermaphroditism, unspecified
Q56.4 Indeterminate sex, unspecified
Ambiguous genitalia

ICD - 9

2008 ICD-9-CM Diagnosis 752.7

Indeterminate sex and pseudohermaphroditism

  • A condition in which the gonads are of one sex but one or more contradictions exist in the morphologic criteria of sex. Female pseudohermaphroditism is a form in which the affected individual is a genetic and gonadal female with partial masculinization. Male pseudohermaphroditism is a form in which the affected individual is a genetic and gonadal male with incomplete masculinization. (Dorland, 27th ed)
  • Originally, a state characterized by the presence of both male and female sex organs. In humans, true hermaphroditism is caused by anomalous differentiation of the gonads, with the presence of both ovarian and testicular tissue and of ambiguous morphologic criteria of sex. If only testicular tissue is present, but there are some female morphological criteria of sex, it is known as male PSEUDOHERMAPHRODITISM. If only ovarian tissue is present, but there are some male morphological criteria of sex, it is known as female PSEUDOHERMAPHRODITISM. (Dorland, 27th ed)
  • 752.7 is a specific code that can be used to specify a diagnosis
  • 752.7 contains 15 index entries
  • View the ICD-9-CM Volume 1 752.* hierarchy

752.7 also known as:

  • Gynandrism
  • Hermaphroditism
  • Ovotestis
  • Pseudohermaphroditism (male) (female)
  • Pure gonadal dysgenesis

752.7 excludes:

  • pseudohermaphroditism:
    • female, with adrenocortical disorder (255.2)
    • male, with gonadal disorder (257.8)
    • with specified chromosomal anomaly (758.0-758.9)
    • testicular feminization syndrome (259.5)

OMIM - 306100; #300018+184757

MeSH - D006061

Inheritance: X-linked recessive

Age of onset Adolescence / Young adulthood


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