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Ieuan Arwel Hughes1, Ralf Werner, Trevor Bunch

  • 1Department of Paediatrics, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom. iah1000@cam.ac.uk

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This summary is machine-generated.

Androgen insensitivity syndromes (AIS) are 46,XY disorders of sex development. Management requires a multidisciplinary team, hormone therapy, and psychological support for patients.

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Area of Science:

  • Genetics
  • Endocrinology
  • Reproductive Medicine

Background:

  • Androgen insensitivity syndromes (AIS) are a group of 46,XY disorders of sex development (DSD).
  • AIS phenotypes result from resistance to androgen action, categorized into complete (CAIS), partial (PAIS), and mild (MAIS).
  • The androgen receptor (AR) gene, located on the X chromosome, harbors over 800 reported mutations in AIS patients.

Purpose of the Study:

  • To review the classification, genetic basis, clinical presentations, and management of androgen insensitivity syndromes.
  • To highlight the diagnostic challenges, particularly in PAIS, and the importance of a multidisciplinary approach.

Main Methods:

  • Literature review of androgen insensitivity syndromes.
  • Analysis of AR gene mutations and their correlation with AIS phenotypes.
  • Discussion of clinical management strategies, including gonadectomy, hormone replacement, and psychological support.

Main Results:

  • Over 800 AR gene mutations are linked to AIS, predominantly in the ligand-binding domain.
  • Severe mutations often correlate with CAIS, while PAIS presentations are more variable.
  • CAIS typically presents as primary amenorrhea or inguinal testes; PAIS can mimic other DSDs with features like micropenis and hypospadias.

Conclusions:

  • Management of AIS necessitates a multidisciplinary team, addressing surgical, hormonal, and psychological aspects.
  • Early and ongoing psychological counseling is crucial for patients and families.
  • The risk of gonadal germ cell tumors increases with age, requiring careful monitoring and timely intervention.