The immunohistochemical subtype (IHS) of the 35 tumours were: 2 HER2 enriched (oestrogen receptor and progesterone receptor negative and HER2 positive), 9 triple negative and 24 luminal B (oestrogen receptor and/or progesterone receptor positive and HER2 positive or HER2 negative with high levels of Ki-67). Here, PGR is linked to neoplasm.