During SABCS 2024, a number of abstracts were dedicated to the treatment of ductal carcinoma in situ (DCIS). A combined analysis of two trials investigated the impact of tamoxifen use on ipsilateral breast recurrence in patients with “good-risk” DCIS. In addition, the COMET trial provided data on the omission of surgical treatment for low-risk DCIS, by evaluating the impact on the short-term on both ipsilateral invasive breast recurrence and patient-reported outcomes (PROs).