Androgen-Insensitivity Syndrome

雄激素不敏感综合征
  • 文章类型: Review
    强调诊断与MYRF突变相关的46,XY性发育障碍的挑战。
    我们介绍了一个不寻常的病例,一个12岁的女性儿童因阴蒂增大而来,最初被诊断为部分雄激素不敏感综合征(AIS)。
    关于考试,患者的外阴被发现有3厘米长的阴蒂。她的外周血核型为46,XY。超声显示骨盆空,激素结果证实雄激素过多症。因此,部分AIS被怀疑,但是以下整个外显子测序表明MYRF中存在病理性错义突变。进一步的调查和手术没有发现任何大脑,心,与MYRF相关的肺或膈肌病变,但只有内部生殖器发育不良和持续性的脐带血。如病理所示,在手术切除剩余的同侧睾丸和附睾炎后,她的血清睾酮降至正常。
    由于核型,雄激素过多症,骨盆空,但青春期后有男子气,患者最初被诊断为部分AIS.如果没有整个外显子测序,这种误导性的临床诊断将不会被验证为MYRF突变,特别是在没有明显大脑的情况下,心,在这种情况下,肺和隔膜病变。
    UNASSIGNED: To highlight the challenges in diagnosing 46, XY disorder of sex development related to MYRF mutation.
    UNASSIGNED: We present an unusual case of a 12-year-old female child came for enlargement of clitoris and initially diagnosed as partial androgen insensitivity syndrome (AIS).
    UNASSIGNED: On examination, the patient\'s vulva was found virilized with 3cm-long clitoris. Her peripheral blood karyotype was 46, XY. The ultrasound showed an empty pelvis and hormone results confirmed hyperandrogenism. Therefore, the partial AIS was suspected, but the following whole exon sequencing indicates a pathological missense mutation in MYRF. Further investigation and surgery did not reveal any brain, heart, lung or diaphragm lesions related to MYRF, but only maldeveloped internal genitalia and a persistent urachus. Her serum testosterone dropped to normal after surgical removal of the remaining ipsilateral testis and epididymitis without spermatogenesis as shown by pathology.
    UNASSIGNED: Due to the karyotype, hyperandrogenism, empty pelvis but a virilism after puberty, the patient was initially diagnosed as partial AIS. This misleading clinical diagnose will not be verified as the MYRF mutation if without the whole exon sequencing, particularly in the absence of obvious brain, heart, lung and diaphragm lesions as in this case.
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  • 文章类型: Journal Article
    目的:雄激素不敏感综合征(AIS)是一种在46XY核型受试者中由于雄激素受体突变导致的外周雄激素抵抗的疾病。激素抵抗的严重程度(完整,部分或轻度)决定了表型的广谱。
    方法:我们对Pubmed进行了文献综述,重点是病因,分子改变,和诊断-治疗管理。
    结果:AIS是由多种X连锁突变决定的,这些突变解释了受试者的广泛表型谱;它代表了最常见的性发育障碍(DSD)之一。临床怀疑可能在出生时出现部分AIS,由于外生殖器存在可变程度的歧义,在完成AIS的青春期,由于女性第二性征的发展,原发性闭经,和缺乏女性的主要性别特征(子宫和卵巢)。尽管轻度或缺乏男性化,但实验室检查显示LH和睾酮水平升高可能有帮助,但只有在基因检测(核型检查和雄激素受体测序)后才能诊断。临床表型,尤其是患者性别分配的决定,如果诊断是在出生时或新生儿期,将指导以下医学,手术和心理管理。
    结论:对于AIS的管理,由医生组成的多学科团队,外科医生,和心理学家强烈建议支持患者和他/她的家人性别认同选择和随后适当的治疗决定。
    OBJECTIVE: Androgen insensitivity syndrome (AIS) is a disorder characterized by peripheral androgen resistance due to androgen receptor mutations in subjects with 46 XY karyotype. The severity of hormone resistance (complete, partial or mild) determines the wide spectrum of phenotypes.
    METHODS: We performed a literature review on Pubmed focusing on etiopathogenesis, molecular alterations, and diagnostic-therapeutic management.
    RESULTS: AIS is determined by a large variety of X-linked mutations that account for the wide phenotypic spectrum of subjects; it represents one of the most frequent disorders of sexual development (DSD). Clinical suspicion can arise at birth in partial AIS, due to the presence of variable degrees of ambiguity of the external genitalia, and at pubertal age in complete AIS, due to the development of female secondary sex characteristics, primary amenorrhea, and absence of female primary sex characteristics (uterus and ovaries). Laboratory tests showing elevated LH and testosterone levels despite mild or absent virilization may be helpful, but diagnosis can be achieved only after genetic testing (karyotype examination and androgen receptor sequencing). The clinical phenotype and especially the decision on sex assignment of the patient, if the diagnosis is made at birth or in the neonatal period, will guide the following medical, surgical and psychological management.
    CONCLUSIONS: For the management of AIS, a multidisciplinary team consisting of physicians, surgeons, and psychologists is highly recommended to support the patient and his/her family on gender identity choices and subsequent appropriate therapeutic decisions.
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  • 文章类型: Review
    完全性雄激素不敏感综合征(CAIS)是一种罕见的易误诊疾病。青春期之前,这种情况很容易误诊为腹股沟疝。此病例报告描述了一名31岁的表型女性CAIS患者,先前曾两次误诊为腹股沟疝。她的核型分析表明她是46,XY。她接受了双侧性腺切除术和长期激素替代疗法。术后诊断为右睾丸的Leydig细胞肿瘤。本报告还回顾了当前对CAIS诊断和治疗的理解。
    Complete androgen insensitivity syndrome (CAIS) is a rare disease that can be easily misdiagnosed. Before puberty, this condition is easily misdiagnosed as an inguinal hernia. This case report describes a 31-year-old phenotypically female patient with CAIS who was misdiagnosed twice previously with an inguinal hernia. Her karyotype analysis showed that she was 46, XY. She underwent a bilateral gonadectomy and long-term hormone replacement therapy. A Leydig cell tumour of the right testis was diagnosed postoperatively. This report also reviews the current understanding of the diagnosis and treatment of CAIS.
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  • 文章类型: Case Reports
    背景:雄激素不敏感综合征(AIS)是由于对雄激素的生物学作用完全或部分抵抗而引起的性别分化障碍。与该综合征相关的常见恶性肿瘤是精原细胞瘤。然而,儿童期恶性肿瘤的风险仍然很低.病例报告:一个8个月大的儿童,具有女性表型和46,XY核型,表现为双侧腹股沟疝。该患者接受了右腹股沟睾丸切除术,精索高位结扎术和腹腔镜下经皮腹膜外疝修补术。最终病理证实右睾丸纯卵黄囊瘤(YST)。在儿童中发现了雄激素受体(AR)基因突变。随访超声显示无复发,血清AFP在3个月内恢复正常。结论:我们提出的病例在文献中很少见,在AIS儿童中,卵黄囊肿瘤具有明显的腹股沟肿块。
    Background: Androgen insensitivity syndrome (AIS) is a disorder of sexual differentiation caused by complete or partial resistance to the biological action of androgens. The common malignant tumors associated with this syndrome are seminomas. However, the risk of malignancy in childhood remains low. Case Report: A 8-month-old child with a female phenotype and a 46, XY karyotype, presented with bilateral inguinal hernia. The patient underwent right radical inguinal orchiectomy with high ligation of the spermatic cord and laparoscopic percutaneous extra-peritoneal herniorrhaphy. Final pathology confirmed a pure yolk sac tumor (YST) from the right testis. Androgen receptor (AR) gene mutation was found in the children. The follow-up ultrasonography shown no recurrence, with serum AFP returned to normal within 3 months. Conclusion: The case we presented is relatively infrequent in the literature with yolk sac tumor in a AIS children presented with a palpable lump inguinal region.
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    文章类型: Case Reports
    The article describes one of the forms of 46 XY DSD which is related to androgen peripheral actions. There are two disorders related to DSD with preserved testosterone production by the testes, which are Androgen insensitivity syndrome (AIS) and type 5α-reductase deficiency. Although the above-mentioned conditions have similar clinical manifestations, they are initiated by different pathogenetic mechanisms. AIS has X-linked recessive inheritance pattern and is presented by total or partial insensitivity of androgen receptors to male sex hormones.
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  • 文章类型: Journal Article
    OBJECTIVE: To summarize the self-reported sexual experiences of women with vaginal agenesis before treatment and discuss the clinical implications.
    METHODS: A retrospective review of pretreatment baseline sexuality data and medical records of women with vaginal agenesis seeking vaginal construction.
    METHODS: A specialist multidisciplinary center for women with genital differences associated with diverse sex development.
    METHODS: One hundred thirty-seven women with untreated vaginal agenesis associated with Mayer-Rokitansky-Küster-Hauser Syndrome and complete androgen insensitivity syndrome aged 15 to 41 years (mean age, 20 years).
    METHODS: Gynecological examination and completion of questionnaires.
    METHODS: (1) Sexual Experiences Questionnaire; (2) Multidimensional Sexuality Questionnaire; (3) Vaginal Self-Perceptions; and (4) vaginal length.
    RESULTS: A sizable proportion of women reported having had sexually intimate experiences before any medical intervention on the vagina. Vaginal length, which ranged from dimple to 7 cm and averaged 2.7 cm for the cohort, was unrelated to the range of sexual experiences. Most women perceived their vagina as being too small, but less than half believed that a sexual partner would notice this. Two-thirds of the cohort subsequently completed the dilation program, which was not predicted by pretreatment vaginal length or sexual experience.
    CONCLUSIONS: Contrary to the assumption that a vagina of certain dimensions is a prerequisite for women to \"have sex,\" many women with Mayer-Rokitansky-Küster-Hauser syndrome and complete androgen insensitivity syndrome reported having experienced genital and nongenital sexual activities with no medical interventions. It is recommended that treatment providers affirm women\'s capacity for sexual intimacy, relationships, and enjoyment before they introduce the topic of vaginal construction as a non-urgent choice.
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  • 文章类型: Case Reports
    Androgen insensitivity syndrome (AIS) is a congenital disorder in which a defect in the androgen receptor (AR) gene leads to cellular resistance to androgens. Defects in the AR gene, located on the X chromosome, result in the development of a feminine phenotype in chromosomally male (46, XY) individuals. In this case report, we present a 44 years old patient with complete androgen insensitivity syndrome (CAIS) initially presenting with primary amenorrhea. The patient underwent a full clinical evaluation, revealing hypoplastic vagina and a lack of uterus and ovaries. Hormonal evaluation revealed markedly elevated testosterone, FSH, and LH serum concentrations. Diagnostic imaging, including pelvic MRI, confirmed the presence of two solid masses in the inguinal canals (right 26 × 13 mm, left 25 × 15 mm). The patient underwent genetic testing, revealing a 46 XY karyotype and an as of yet unprecedented androgen receptor mutation. The type of the mutation was a single-base exchange - the substitution from cytosine to thymine in chromosome X:66942710 position (referred to human reference genome GRCh37), which has resulted in an amino acid changes from leucine (CTT) to phenyloalanine (TTT) in ligand-binding domain.
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  • 文章类型: Journal Article
    雄激素不敏感综合征是46,XY个体性分化障碍的最常见原因。它来自雄激素受体基因的改变,导致荷尔蒙抵抗的框架,在临床上可能存在3种表型:完整(CAIS),部分(PAIS)或轻度(MAIS)。雄激素受体基因有8个外显子和3个结构域,该基因的等位基因变异出现在所有结构域和外显子中,无论表型如何,在这种综合征中提供较差的基因型-表型相关性。通常,实验室诊断是通过升高LH和睾酮水平,很少或没有男性化。治疗取决于个体的表型和社会性别。雄激素不敏感综合征管理中的开放性问题包括性别分配的决定,性腺切除术的时机,生育力,物理结果和遗传咨询。
    Androgenic insensitivity syndrome is the most common cause of disorders of sexual differentiation in 46,XY individuals. It results from alterations in the androgen receptor gene, leading to a frame of hormonal resistance, which may present clinically under 3 phenotypes: complete (CAIS), partial (PAIS) or mild (MAIS). The androgen receptor gene has 8 exons and 3 domains, and allelic variants in this gene occur in all domains and exons, regardless of phenotype, providing a poor genotype - phenotype correlation in this syndrome. Typically, laboratory diagnosis is made through elevated levels of LH and testosterone, with little or no virilization. Treatment depends on the phenotype and social sex of the individual. Open issues in the management of androgen insensitivity syndromes includes decisions on sex assignment, timing of gonadectomy, fertility, physcological outcomes and genetic counseling.
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  • DOI:
    文章类型: Case Reports
    Androgen insensitivity syndrome (AIS) is a very uncommon genetic disorder that results from the resistance of androgen receptor (AR) to androgen, which influences the formation of the male genitalia and in turn presents with female phenotype. Surgical resection of undesceaded testicle and different kinds of genitoplasty are crucial methods to correct the deformity of reproductive system, as well as hormone replacement therapy, which is an essential therapy for postoperational rehabilitation in AIS patients. A 43-year-old patient, who was socially female, was first admitted to gastroenterology department due to recurrent ascites and occasional abdominal pain with unknown origin. Taking physical examination, ultrasonography, karyotype analysis and sex hormone levels into consideration, the overall manifestations revealed the typical clinical features of complete androgen insensitivity syndrome. After that she was transferred to urology department for laparoscopic gonadectomy. During the surgery, doctors found that there was a vesical fistula on the upper wall near the conjunction between the bladder and ligamenta umbilicale medium, which explained the recurrent ascites for more than 4 years. After resecting the testicles and the tissues around the vesical fistula for histopathology, the result suggested Sertoli cell adenoma, hyperplastic Leydig cells and urothelium atypical hyperplasia. Hormone replacement therapy was given right after discharge. The hormone levels of follicle-stimulating hormone, luteinizing hormone, estradiol and progesterone were modulated by the dysfunction of androgen production after gonadectomy and hormone replacement therapy together with psychotherapy could stabilize her hormone levels and improve the quality of her life. The patient was suspicious of AIS family history and the pedigree was made to analyze her family which was possibly X-linked recessive pattern. We propose three possible hypotheses of the fistula, which are direct surgical injury, recurrence of bladder cancer and congenital urachal anomalies. But whether it is relevant between urachal anomalies and AIS is yet to be discovered.
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  • 文章类型: Case Reports
    Testicular feminization, or the androgen insensitivity syndrome, is a rare disease. Because of various abnormalities of the X chromosome, a male, genetically XY, has some physical characteristics of a woman or a full female phenotype. Indeed the androgen insensitivity syndrome occurs because of a resistance to the actions of the androgen hormones, which in turn switches the development towards the aspect of a woman. We report a case of complete androgen insensitivity syndrome in a 30 years old woman who presented primary amenorrhea. We aim to improve our knowledge of this illness from the data that provides us this study, and a review of the literature.
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