Ovarian Gonadoblastoma With Dysgerminoma in a 15-year-old Girl With 46, XX Karyotype: Case Report and Review of the Literature

Arch Gynecol Obstet. 2012 Feb;285(2):447-51. doi: 10.1007/s00404-011-2073-9. Epub 2011 Aug 31.


Objective: To present a challenging case of hCG positivity in a young patient and to review similar cases reported in the literature.

Methods: Literature search of gonadoblastoma cases with pure 46, XX karyotype using PubMed database.

Results: A 15-year-old girl with hCG positivity was investigated for the source and the initial diagnosis was an ectopic pregnancy. An ovarian tumor was identified after failed methotrexate therapy and the pathological diagnosis was gonadoblastoma with dysgerminoma. To the best of our knowledge, the case was unique in the literature for having the smallest diameter of a gonadoblastoma tumor with 46, XX karyotype.

Conclusion: Differential diagnosis of perimenarcheal vaginal bleeding may be challenging for the clinician. Rare causes such as pregnancy both intrauterine and extrauterine and hormone producing tumors should be kept in mind.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adolescent
  • Chorionic Gonadotropin / blood*
  • Diagnosis, Differential
  • Dysgerminoma / blood
  • Dysgerminoma / complications
  • Dysgerminoma / diagnosis*
  • Female
  • Gonadoblastoma / blood
  • Gonadoblastoma / complications
  • Gonadoblastoma / diagnosis*
  • Humans
  • Karyotype
  • Ovarian Neoplasms / blood
  • Ovarian Neoplasms / complications
  • Ovarian Neoplasms / diagnosis*
  • Pregnancy
  • Pregnancy, Ectopic / diagnosis*
  • Uterine Hemorrhage / etiology


  • Chorionic Gonadotropin