Fig. 1.

Flow chart of ductal carcinoma in situ (DCIS) patients included in the study and results of the sentinel lymph node (SLN) procedure. n number of patients, ALND axillary lymph node dissection, VAB vacuum-assisted biopsy, b-DCIS vacuum-assisted biopsy-diagnosed DCIS, b-DCIS–MI vacuum-assisted biopsy-diagnosed DCIS with microinvasion, mDCIS mastectomy-diagnosed DCIS, mDCIS–MI mastectomy-diagnosed DCIS with microinvasion, mDCIS–IDC mastectomy-diagnosed DCIS with associated invasive carcinoma