VOL.: 6 (1974) (p. 209)
Testosterone implanted subcutaneously induced cervical-uterine tumours in mice, which metastasized in some cases. The only study in rats was considered inadequate in numbers of animals.
The incidences of leukaemia and of liver-cell and breast tumours in untreated mice of some strains were decreased by testosterone treatment, but the incidence of mammary tumours was increased by neonatal treatment of females of a mammary-tumour-virus-bearing strain.
Three distinctive types of neoplasm were induced in hamsters by a combination of oestrogen and testosterone: a tumour of the uterine endometrium, a tumour of the vas deferens-epididymis and a basal-cell epithelioma of the flank. They remained dependent on oestrogen and testosterone for continued growth.
Subsequent evaluations: Vol. 21 (1979); Suppl. 7 (1987)
See Also: Toxicological Abbreviations TESTOSTERONE (JECFA Evaluation) Testosterone (PIM 519) Testosterone (IARC Summary & Evaluation, Volume 6, 1974)