Sex cord-stromal tumor

Overview
Sex cord-stromal tumour is a group of tumours of sex cord-derived tissues of the ovary and testis. It accounts for 8% of ovarian cancers and a minority of testicular cancers.

This group consists of:
 * Granulosa cell tumour
 * Thecoma
 * Sertoli-Leydig cell tumour
 * Fibroma

These tumours tend to be functional, producing estrogens or androgens. They may have dramatic clinical presentations. Almost all are unilateral.