1. SYN: Sertoli-Leydig cell tumor. 2. A rare variety of arrhenoblastoma of the ovary, containing granulosa or theca cell elements and producing simultaneous androgenic and estrogenic effects.

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gyn·an·dro·blas·to·ma (.)gīə-bla-'stō-mə, (.)jin- n, pl -mas also -ma·ta -mət-ə a rare tumor of the ovary with both masculinizing and feminizing effects compare ARRHENOBLASTOMA

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gy·nan·dro·blas·to·ma (gi-) (jə-nan″dro-blas-toґmə) [gyn- + andro- + blastoma] a rare ovarian tumor containing histologic features of both arrhenoblastoma and granulosa cell tumor.

Medical dictionary. 2011.

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  • arrhenoblastoma — SYN: Sertoli Leydig cell tumor. [G. arrhen, male, + blastos, germ, + oma, tumor] * * * ar·rhe·no·blas·to·ma .ar ə .nō .bla stō mə, ə .rē .nō n, pl mas also ma·ta mət ə a sometimes malignant tumor of the ovary that by the secretion of male hormone …   Medical dictionary

  • tumor — 1. Any swelling or tumefaction. 2. SYN: neoplasm. 3. One of the four signs of inflammation (t., calor, dolor, rubor) enunciated by Celsus. [L. t., a swelling] acinar cell t. a …   Medical dictionary

  • stromal tumors — a diverse group of tumors derived from the ovarian stroma; many of them secrete sex hormones. Included are granulosa theca cell tumor, hilar cell tumor, lipoid cell tumor, arrhenoblastoma, and gynandroblastoma. Called also sex cord–stromal t s …   Medical dictionary

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