Interestingly, invasive ductal carcinomas with 16q-disomy (CTRL, B2, and C) showed a higher level of CDH1 transcripts in comparison to normal breast tissues, while CDH1 levels in invasive ductal carcinomas with 16q-loss (group A, B1, and D) were similar to those of normal tissue. This evidence concerns the gene CDH1 and invasive ductal breast carcinoma.