Positive p140Cap status (IHC score ≥1) was associated with good prognosis markers, such as negative lymph node status (P=0.014, where P=Pearson χ2-test), ER and progesterone receptor (PgR)-positive status (P=0.0002 and P=0.0049, respectively), small tumour size (pT1 versus pT2–pT4, P<0.0001), low grade (P<0.0001), low proliferative status (Ki67, P=0.0013), and ERBB2-positive status (P=0.0344). The gene discussed is PGR; the disease is neoplasm.