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Breast. 2011 Dec;20(6):529-33. doi: 10.1016/j.breast.2011.06.001. Epub 2011 Aug 16.

Outcome of long term active surveillance for estrogen receptor-positive ductal carcinoma in situ.

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  • 1University of California, San Francisco, Department of Radiology, 1600 Divisadero Street, Ste C-250, San Francisco, CA 94115, USA.



An option for active surveillance is not currently offered to patients with ductal carcinoma in situ (DCIS); however a small number of women decline standard surgical treatment for noninvasive cancer. The purpose of this study was to assess outcomes in a cohort of 14 well-informed women who elected non-surgical active surveillance with endocrine treatment alone for estrogen receptor-positive DCIS.


Retrospective review of 14 women, 12 of whom were enrolled in an IRB-approved single-arm study of 3 months of neoadjuvant endocrine therapy prior to definitive surgical management. The patients in this report withdrew from the parent study opting instead for active surveillance with endocrine treatment and imaging.


8 women had surgery at a median follow up of 28.3 months (range 10.1-70 months), 5 had stage I IDC at surgical excision, and 3 had DCIS alone. 6 women remain on surveillance without evidence of invasive disease for a median of 31.8 months (range 11.8-80.8 months).


Long-term active surveillance for DCIS is feasible in a well-informed patient population, but is associated with risk of invasive cancer at surgical excision.

Copyright © 2011 Elsevier Ltd. All rights reserved.

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