As shown in Table 1, the CLIP4 expression was significantly decreased in invasive breast carcinoma, invasive lobular breast carcinoma, invasive ductal breast carcinoma, tubular breast carcinoma, mucinous breast carcinoma, ductal breast carcinoma in situ, and mixed lobular and ductal breast carcinoma (Richardson et al., 2006; Ma et al., 2009; Curtis et al., 2012; Gluck et al., 2012). This evidence concerns the gene CLIP4 and ductal breast carcinoma in situ.