that are used to treat
hormone-sensitive tumours. Hormone-sensitive tumours may be hormone-dependent, hormone-responsive, or both. A hormone-dependent tumour
regresses on removal of the hormonal
stimulus, by surgery or pharmacological block. Hormone-responsive tumours may regress
amounts of hormones
are administered regardless of whether previous signs of hormone sensitivity
were observed. The major
hormone-responsive cancers include carcinomas of the breast, prostate, and endometrium; lymphomas; and determined leukaemias.