A, LOH on chromosome 17q (D17S785; expected size, 181–207 bp) in SC-IDC (Lane 2), SC-DCIS (Lane 3), clear-cut normal epithelial cells (Lane 4), DCIS (Lane 5), and IDC (Lane 6). A, LOH on chromosome 17q (D17S785; expected size, 181–207 bp) in SC-IDC (Lane 2), SC-DCIS (Lane 3), clear-cut normal epithelial cells (Lane 4), DCIS (Lane 5), and IDC (Lane 6). Lane 1, normal SAD from DCIS or IDC. B, graphical (densitometric) representation of lanes seen in A. Farid Moinfar et al. Cancer Res 2000;60:2562-2566 ©2000 by American Association for Cancer Research