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Gonadectomy in Complete Androgen Insensitivity Syndrome: Why and When?
Ulla Döhnert1, Lutz Wünsch, Olaf Hiort
1Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics and Adolescent Medicine, University of Lübeck, Lübeck, Germany.
Summary
Women with complete androgen insensitivity syndrome (CAIS) face a risk of gonadal tumors. A proposed biannual screening program may help manage this risk while allowing patients to retain their gonads.
Area of Science:
- Reproductive Endocrinology
- Oncology
- Genetics
Background:
- Complete androgen insensitivity syndrome (CAIS) is associated with an elevated risk of malignant germ cell tumors in intra-abdominal gonads.
- Current screening methods for early detection of pre-malignant changes in CAIS gonads are unreliable.
- Prophylactic gonadectomy is recommended, but timing is debated due to low pre-pubertal risk and the desire for spontaneous puberty.
Purpose of the Study:
- To address the controversy surrounding gonadectomy timing in CAIS patients post-puberty.
- To investigate the challenges in assessing individual malignancy risk and hormone therapy in CAIS.
- To propose an alternative management strategy for women with CAIS who wish to retain their gonads.
Main Methods:
- Review of existing literature on CAIS, gonadal tumor risk, and management protocols.
- Analysis of endogenous hormone profiles and their influence on bone health and psychosocial well-being.
- Proposal of a biannual screening program for evaluation in a prospective multi-center trial.
Main Results:
- The absolute malignancy risk in individuals with CAIS is difficult to determine.
- Endogenous hormone profiles in CAIS have unique characteristics impacting various health aspects.
- Lack of robust studies supporting specific gonadectomy protocols or hormone therapy regimens.
Conclusions:
- A biannual screening program is proposed for women with CAIS who opt to retain their gonads.
- This program requires prospective multi-center trial evaluation to assess its efficacy and safety.
- Further research is needed to understand the full impact of endogenous hormone profiles in CAIS.

