DKK1 and breast carcinoma: Table 2 displays the Dkk1 staining pattern in all study samples using quantative results and categorical data. This table is divided into three main sections: the percentage of stained tumour cell scores, the staining intensity scores, and the IRS scores (which were derived by multiplying the two scores). Each main part includes the results for the core needle biopsy tissues of 145 study cases, core needle biopsy tissues of 68 matched cases, and mammary carcinoma tissues of 68 matched cases. Positive Dkk1 staining was defined as IRS ≥ 3 according to Remmele and Stegner’s method [21].