label: Malignant Sex Cord-Stromal Tumor
label_lc: malignant sex cord-stromal tumor
description: A gonadal sex cord-stromal tumor with malignant characteristics.  It includes the poorly differentiated ovarian Sertoli-Leydig cell tumor, malignant ovarian granulosa cell tumor, malignant ovarian steroid cell tumor, and malignant ovarian thecoma.