Granulosa cell tumors are representative of estrogenic ovarian tumors, and some Sertoli-stromal cell tumors are also estrogenic. The exact cells that are responsible for estrogenesis, however, have yet to be identified. In the present study, 25 sex cord-stromal tumors (20 granulosa cell tumors, 4 Sertoli-Leydig cell tumors, and a Sertoli cell tumor) were immunohistochemically examined for expre...

INTRODUCTION Uterine tumors resembling ovarian sex cord tumors (UTROSCT) are uterine neoplasms of unknown histiogenesis which show near complete differentiation towards ovarian sex cord elements and are postulated to arise from pluripotential uterine mesenchymal cells or endometrial stromal cells with secondary sex cord differentiation. CASE PRESENTATION A 48 year old post-menopausal women pr...

Ovarian tumors are classified on the basis of tumor origin as epithelial tumors (serous and mucinous tumors, endometrioid and clear cell carcinomas, Brenner tumor), germ cell tumors (mature and immature teratomas, dysgerminoma, endodermal sinus tumor, embryonal carcinoma), sex cord-stromal tumors (fibrothecoma; granulosa cell, sclerosing stromal, and Sertoli-Leydig cell tumors), and metastatic ...

Uterine tumors with sex cord-like elements are divided in two groups; uterine tumors resembling ovarian sex cord tumors (UTROSCT), and endometrial stromal tumors with sex cord-like elements (ESTSCLE). UTROSCT is currently defined as the neoplasm predominantly or exclusively composed of sex cord-like elements, and generally behaves in a benign fashion. We studied two unusual cases of UTROSCT wit...

The purpose of this study was to identify risk factors associated with the development non-epithelial ovarian cancer in Mexican women. A case-control carried out on women registered Institute Social Security Mexico City over a period two years (1995–97). Twenty-eight new cases were recruited from Gynecology and Obstetrics Hospital no. 4, “Luis Castelazo Ayala”, matched by age 84 controls select...

Inhibin is a secreted tumor suppressor, and inhibin alpha null mice develop gonadal sex cord-stromal tumors with 100% penetrance at an early age. Inhibin-deficient mice die of a severe wasting syndrome due to increased activin signaling through activin receptor type II. The current study was designed to assess the in vivo effects of an activin antagonist, a chimeric activin receptor type II fus...

Sclerosing stromal tumor (SST) of the ovary is a very rare sex cord stromal tumor occurring in a younger age group than other types of stromal tumors and most commonly accompanied by menstrual irregularity. Several unique histologic features including pseudolobulation, sclerosis and prominent vascularity are clearly reflected at ultrasonography and MRI. We report the ultrasonographic and MR fea...