Hallam et al. report a case of grade 2 estrogen and progesterone receptor-positive invasive ductal carcinoma treated with wide local excision, adjuvant radiotherapy with 9 MeV electrons to a dose of 40 Gy in 15 fractions over 21 days, and tamoxifen [11]. The gene discussed is PGR; the disease is invasive ductal breast carcinoma.