Invasive breast cancer incidence among women 50 years old or older by tumor histology, race/ethnicity, and year according to Surveillance, Epidemiology, and End Results-13. (a) Trends for ILC breast cancer. (b) Trends for IDC breast cancer. (c) Trends for IDLC breast cancer. (d) Trends for other/unknown breast cancer. All rates are age-adjusted to the 2000 US standard. IDC, invasive ductal carcinoma; IDLC, invasive ducto-lobular carcinoma; ILC, invasive lobular carcinoma.