We reviewed 319 primary breast tumours for cytosolic pS2 content, with
a median follow-up of 6 years. pS2 status correlated positively with
oestradiol and progesterone receptors and negatively;with Scarff, Bloo
m and Richardson grade. pS2 positivity was associated with longer over
all survival, particularly in patients who received hormone therapy, i
n whom pS2 status was also predictive of the response to therapy.