A follow-up of GLACIER (a study to investigate the Genetics of LobulAr Carcinoma In situ in EuRope) and ICICLE (A study to Investigate the genetiCs of In situ Carcinoma of the ductaL subtypE). Did you take part in the ICICLE or GLACIER study sponsored by QMUL? We are gathering information on those that took part and consented for their data/sample to be used in future studies to see if their cancer has recurred or progressed since the close of these studies. We are doing this to ascertain whether any of the genes or SNPs that predispose to lobular breast cancer and DCIS affect survival or progression, and identify tumour biomarkers associated with survival and progression. King’s College London are now looking after the initial studies and the follow-up study, and will be working on the follow-up study alongside Guy’s & St Thomas’ Hospital. If you have any questions please contact Professor Elinor Sawyer (firstname.lastname@example.org) or Jasmine Timbres (email@example.com) from the King’s College London Breast Cancer Genetics Team.