| Leydig | Franz von, German anatomist, 1821-1908. See: Leydig's cells, Leydig cell adenoma. (05 Mar 2000) |
|---|---|
| Leydig cell | Interstitial cells of the mammalian testis, involved in synthesis of testosterone. (18 Nov 1997) |
| Leydig cell adenoma | <tumour> A small benign tumours of the testis that often produce testosterone, causing endocrine symptoms. Synonym: interstitial cell tumour of testis. (05 Mar 2000) |
| leydig cell tumour | The most common nongerminal tumour of the testis, derived from the leydig cells. It is rarely malignant. This tumour appears among 1-3% of testicular tumours and although they may be seen in children, the median age of appearance is 60 years. They are sometimes seen in women as ovarian tumours. Clinically, symptoms are usually related to the endocrine abnormalities induced by this tumour. (12 Dec 1998) |
| leydig cells | Cells in the interstitial tissue of the testis that are believed to furnish the internal secretion of that gland. (12 Dec 1998) |
| Leydig's cells | lutropin |
| Leydig, Franz von | <person> In 1855 was appointed Professor of Histology in Wurzburg and later in Tubingen and Bonn. Was the founder of Comparative Histology. Leydig's Cells - interstitial cells of the testis. Lived: 1821-1908. B. Rothenburg, May 21st, 1821, d. Apr 13th, 1908. (05 Dec 1998) |
| leydigarche | An obsolete term for the beginning of gonadal function in the male, e.g., male puberty. Origin: Leydig (see Leydig cells), + G. Arche, beginning (05 Mar 2000) |
| sertoli-leydig cell tumour | An ovarian tumour usually of low-grade malignancy occurring most frequently in the third and fourth decades, with 75% seen in women under 40. It is rare, representing less than .02% of ovarian cancers. The tumour typically produces androgens with virilization being noted in 70-85% of the patients. (holland et al., cancer medicine, 3d ed, p1684) (12 Dec 1998) |
|---|