MCF10AT1 resembles ADH (Dawson et al., 1996), MCF10DCIS.com mimics high-grade DCIS (Miller et al., 2000), and MCF10CA1a represents a malignant invasive cancer that was observed to form metastatic lesions in a mouse xenograft (Santner et al., 2001). The gene discussed is AVP; the disease is ductal breast carcinoma in situ.