Patterns of treatment and outcome of ductal carcinoma in situ in the Netherlands

Purpose To spare DCIS patients from overtreatment, treatment de-escalated over the years. This study evaluates the influence of these developments on the patterns of care in the treatment of DCIS with particular interest in the use of breast conserving surgery (BCS), radiotherapy following BCS and the use and type of axillary staging. Methods In this large population-based cohort study all women, aged 50-74 years diagnosed with DCIS from January 1989 until January 2019, were analyzed per two-year cohort. Results A total of 30,417 women were diagnosed with DCIS. The proportion of patients under... Mehr ...