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Case report
46, XY complete gonadal dysgenesis with pubertal virilisation due to dysgerminoma/gonadoblastoma
  1. Sarah Alam,
  2. Hiya Boro,
  3. Alpesh Goyal and
  4. Rajesh Khadgawat
  1. Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, Delhi, India
  1. Correspondence to Dr Alpesh Goyal; alpeshgoyal89{at}


Complete gonadal dysgenesis (CGD) or Swyer syndrome is characterised by sexual infantilism in a phenotypic female with 46, XY karyotype. Patients with gonadal dysgenesis and Y-chromosome material are at a high risk of developing gonadoblastoma and dysgerminoma. A 16-year-old girl presented with progressive virilisation, poor breast development and primary amenorrhea. On evaluation, she was found to have male-range serum testosterone, large abdominopelvic mass lesion, elevated germ cell tumour markers and 46, XY karyotype. She underwent surgical excision of left gonadal mass and right streak gonad, histopathology of which revealed dysgerminoma and gonadoblastoma, respectively. A diagnosis of virilising germ cell tumour arising in the setting of 46, XY CGD was, therefore, made. This case highlights a rare presentation of 46, XY CGD and the need to consider early prophylactic gonadectomy in patients affected with this rare condition. The presence of dysgerminoma/gonadoblastoma should be suspected if a hitherto phenotypic female with CGD undergoes virilisation.

  • reproductive medicine
  • cancer - see oncology

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  • Contributors SA, HB, AG and RK diagnosed and managed the patient, did the literature search and drafted the manuscript. All authors reviewed and approved the final manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Parental/guardian consent obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.