Urinary steroids at time of surgery in postmenopausal women with breast cancer.

Urinary steroid metabolites were measured by capillary gas chromatography in 22 postmenopausal women with operable breast cancer on day before the tumour excision and in 20 hospitalised control who were before an operation from other cause than cancer. Serum dehydroepiandrosterone-sulphat (DHEAS) and testosterone (T) level were measured by radioimmunassay in the same groups and same time. There was no significant difference in the level of urinary androgen metabolites. Pregnanediol level was significantly lower (P < 0.05) in cancer patients. In the 5 patients with positive axillary nodes the tetrahydrocortisol and alpha-cortolone levels were significantly (P < 0.05) higher than in node negative ones. There was no significant differences in the serum DHEAS and T levels. These results indicate that metabolic changes are existing in postmenopausal patients which may be a cause or a consequence of the disease.