Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Management of Ductal Carcinoma in Situ (DCIS) or Pure Micro-invasive (DCIS-MI) Extended Breast, Axillary Node Sentinel Site (GAS) When the Diagnosis is Made by Biopsy and
Brief Summary: The rate of axillary dissection avoided in patients with Ductal Carcinoma in Situ (DCIS) and a mastectomy indication will be obtained by calculating the proportion of women with GAS in-patient population that will prove to be DCIS or DCIS-MI + CCI. A confidence interval of 95% will be deferred.