MCF10DCIS.com Xenograft Model of Human Comedo Ductal Carcinoma In Situ

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Abstract
Ductal carcinoma in situ (DCIS) is becoming increasingly common, accounting for 25%–30% of newly diagnosed cases of breast cancer (1). The comedo type represents about 40% of the cases and carries the worst prognosis (2). The subsequent incidence of recurrence in patients presenting previously with comedo DCIS was 20% compared with 5% for noncomedo DCIS in one study (3). National Surgical Adjuvant Breast and Bowel Project Protocol B-17 reported a 40% incidence of ipsilateral breast cancer after lumpectomy of comedo DCIS and found that comedo necrosis is the only important predictor for recurrence after lumpectomy (4).