Receptor levels in breast cancer.

This report provides information regarding the relative importance of ER and PgR alone and both, as markers, in 352 breast cancers. We observed that the presence of ER not involves the presence of PgR, while the presence of PgR assumes an estrogenic action even if the lowest. In addition the presence of PgR+ depends also on ER negative-detectable (91.42% of the cases) such as we were able to observe that PgR+ was associated with ER negative-undetectable, only in 8.57% of cases. Moreover within the positivity of the couple of ER/PgR, the prognostic value is correlated at ER+ levels, while the predictive value is correlated at PgR+ levels.