title: [Morphological and endocrinological study of ovarian arrhenoblastoma (author's transl)].
abstract: Morphological and endocrinological studies were performed on a 19-year-old case of an arrhenoblastoma with marked virilization. The tumor was an intermediate type of Meyer's classification. Histochemically, 3 beta-HSD and G-6-PDH activities were demonstrated in Leydig cells. These cells also had ultrastructures typical of steroid-producing cells. Basal blood cells of pregnenolone, dehydroepiandrosterone, testosterone (T), androstenedione (A), progesterone, estradiol, estrone, LH, and FSH were determined pre- and postoperatively. T and A showed a very high level preoperatively, and were markedly decreased immediately after removal of the tumor. Stimulation of tumor cells by HMG-HCG did not show any significant changes in their main products of T and A. These findings suggest that Leydig cells of the present tumor produced mainly A and T independently on gonadotropins, and these hormones had virilized the patient.
mesh_terms: D000328:Adult; D000735:Androstenedione / Q000378:metabolism; D005260:Female; D005640:Follicle Stimulating Hormone / Q000378:metabolism; D006801:Humans; D007986:Luteinizing Hormone / Q000378:metabolism; D010051:Ovarian Neoplasms / Q000378:metabolism / Q000648:ultrastructure*; D018310:Sertoli-Leydig Cell Tumor / Q000378:metabolism / Q000648:ultrastructure*; D013739:Testosterone / Q000378:metabolism
chemical_list: D013739:Testosterone; D000735:Androstenedione; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone