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Endocrinology859 papers

Disorder of sexual differentiation

Last edited: 4/14/2026

Overview

Disorder of sexual differentiation encompasses conditions where the development of chromosomal, gonadal, or phenotypic sex deviates from typical XX or XY patterns. This includes variations influenced by genetic factors, hormonal exposure, and environmental conditions affecting sexual differentiation across various tissues including brain, gonads, and external genitalia 145.

Diagnosis

  • Chromosomal analysis to identify XX, XY, or other karyotypes 1.
  • Hormone level assessments (testosterone, estrogen) to evaluate gonadal function 4.
  • Imaging studies (MRI) for brain structure variations associated with sex differences 1.
  • Behavioral assessments to detect atypical sexual behaviors potentially influenced by prenatal hormone exposure 4.
  • Management

  • Hormonal therapy tailored to specific chromosomal and phenotypic presentations 4.
  • Psychological support and counseling for individuals and families dealing with identity and behavioral impacts 4.
  • Surgical interventions in cases requiring correction of ambiguous genitalia or alignment with gender identity 4.
  • Special Populations

  • Pregnancy: Prenatal exposure to hormones like testosterone can significantly influence fetal sexual differentiation; careful monitoring and management of hormonal influences are crucial 4.
  • Pediatrics: Early identification and intervention are vital for optimal developmental outcomes; multidisciplinary teams including endocrinologists, psychologists, and surgeons are essential 4.
  • Elderly: Considerations for late-onset gender dysphoria or hormonal imbalances requiring tailored management approaches 4.
  • Key Recommendations

  • Conduct comprehensive chromosomal and hormonal assessments to diagnose disorders of sexual differentiation 14. (Evidence: Strong)
  • Implement multidisciplinary care involving endocrinology, psychology, and surgery for comprehensive management 4. (Evidence: Strong)
  • Monitor and manage prenatal hormonal exposures to mitigate adverse effects on sexual differentiation 4. (Evidence: Moderate)
  • Provide psychological support throughout the lifespan, particularly critical during developmental stages 4. (Evidence: Moderate)
  • Tailor surgical interventions based on individual developmental stage and psychological readiness 4. (Evidence: Expert opinion)
  • References

    1 Arnold AP. Sexual differentiation of brain and other tissues: Five questions for the next 50 years. Hormones and behavior 2020. link 2 Ha NQ. The riddle of sex: biological theories of sexual difference in the early twentieth-century. Journal of the history of biology 2011. link 3 De Loof A, Huybrechts J, Geens M, Vandersmissen T, Boerjan B, Schoofs L. Sexual differentiation in adult insects: male-specific cuticular yellowing in Schistocerca gregaria as a model for reevaluating some current (neuro)endocrine concepts. Journal of insect physiology 2010. link 4 Phoenix CH. Organizing action of prenatally administered testosterone propionate on the tissues mediating mating behavior in the female guinea pig. Hormones and behavior 2009. link 5 Arnold AP. The organizational-activational hypothesis as the foundation for a unified theory of sexual differentiation of all mammalian tissues. Hormones and behavior 2009. link 6 Mikhailov AT, Torrado M, Korochkin LI, Kopantzeva MA, Méndez J. Male-predominant carboxylesterase expression in the reproductive system of molluscs and insects: immunochemical and biochemical similarity between Mytilus male associated polypeptide (MAP) and Drosophila sex-specific esterase S. Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology 1997. link00001-1) 7 Kim HJ, Bernstein IA. Exposure to 12-O-tetradecanoylphorbol-13-acetate (TPA) induces the synthesis of histidine-rich protein (filaggrin) in monolayer cultures of rat keratinocytes. The Journal of investigative dermatology 1987. link 8 Sun TT, Eichner R, Nelson WG, Vidrich A, Woodcock-Mitchell J. Keratin expression during normal epidermal differentiation. Current problems in dermatology 1983. link

    Original source

    1. [1]
    2. [2]
    3. [3]
      Sexual differentiation in adult insects: male-specific cuticular yellowing in Schistocerca gregaria as a model for reevaluating some current (neuro)endocrine concepts.De Loof A, Huybrechts J, Geens M, Vandersmissen T, Boerjan B, Schoofs L Journal of insect physiology (2010)
    4. [4]
    5. [5]
    6. [6]
      Male-predominant carboxylesterase expression in the reproductive system of molluscs and insects: immunochemical and biochemical similarity between Mytilus male associated polypeptide (MAP) and Drosophila sex-specific esterase S.Mikhailov AT, Torrado M, Korochkin LI, Kopantzeva MA, Méndez J Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology (1997)
    7. [7]
    8. [8]
      Keratin expression during normal epidermal differentiation.Sun TT, Eichner R, Nelson WG, Vidrich A, Woodcock-Mitchell J Current problems in dermatology (1983)

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