Journal of surgical oncology
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Ductal carcinoma in situ (DCIS) represents about 20% of newly diagnosed breast carcinomas. Axillary metastasis is often related to undiagnosed DCIS with microinvasion (DCISM). The aim of this study was to confirm the interest of sentinel lymph node (SLN) biopsy in extensive DCIS. ⋯ Sentinel lymph node biopsy is valuable in patients with diffuse DCIS or DCISM who are scheduled for mastectomy in order to search for axillary micrometastases and occult breast microinvasion.