With respect to ER/PR status, lobular, ductal/lobular, and mucinous carcinomas have been shown to be more likely to be ER+/PR+ compared to ductal carcinomas, similar to what we observed here (Desai et al, 2000; Arpino et al, 2004; Korhonen et al, 2004; Mathieu et al, 2004). Here, PGR is linked to breast ductal adenocarcinoma.