GHR and malignant myoepithelioma: In FFPE samples simple carcinomas (p = 0.044), solid carcinomas (p = 0.005), carcinoma and malignant myoepithelioma (p = 0.036) and ductal carcinomas (p = 0.043) exhibited significantly lower GHR gene expression compared to the group of lobular hyperplasia (S8 Fig).