Raised levels of steroid hormones are not expected in postmenopausal w
omen. Therefore, if detected in postmenopausal women with ovarian canc
er, they must be assumed to be related to the presence of the tumour a
nd, therefore, may be of use as tumour markers. Serum levels of CA125,
progesterone, 17-hydroxyprogesterone, sex hormone binding globulin an
d oestradiol were measured in 44 postmenopausal women with ovarian can
cer, postsurgery and prior to chemotherapy. The relationship between t
he four hormone levels, CA125, patient age, stage, residual disease af
ter surgery and differentiation were tested using the Spearman and Ken
dall rank coefficients. A significant inverse association was found be
tween CA125 and progesterone levels, and CA125 and 17-hydroxyprogester
one. A positive association between 17-hydroxyprogesterone and progest
erone was also found, and positive correlations between stage and CA12
5, and residual disease and CA125 were confirmed.