Altogether, 13 out of 19 IBC samples belonged to the combined basal-like and ErbB2-overexpressing subtype, whereas only 6 out of 40 non-IBC belonged to the combined basal-like and ErbB2-overexpressing cluster (Pearson χ2; P<0.0001). The gene discussed is ERBB2; the disease is inflammatory breast carcinoma.