Ovarian Gonadoblastoma with Dysgerminoma in a Young Girl with 46, XX Karyotype: A Case Report

J Clin Diagn Res. 2013 Sep;7(9):2021-2. doi: 10.7860/JCDR/2013/6412.3393. Epub 2013 Aug 10.

Abstract

Gonadoblastoma is a rare gonadal tumour consisting of a mixture of germ cells and sex cord stromal derivatives resembling immature granulosa and Sertoli cells. It usually arises in various types of gonadal dysgenesis containing Y chromosome like pure or mixed gonadal dysgenesis. Occurrence in phenotypically and chromosomally normal women is very rare. We report here a case of gonadoblastoma with dysgerminoma in a 14-years-old girl who presented with a huge tumour, virilisation and normal 46XX karyotype. Association of dysgerminoma is seen in 50% cases of gonadoblastomas. Elevated tumour markers like hCG and alpha Fetoprotein may make the diagnosis challenging.

Keywords: 46XX Karyotype; Dysgerminoma; Gonadoblastoma; Tumour.