DFS and QOL After Modified Radical Mastectomy vs. Expanded Mckissock Surgery for EIC of the Breast

Extensive intraductal carcinoma of the breast refers to a type of breast cancer in which ≥ 25% of ductal carcinoma in situ is present in invasive tumors and there is a scattered distribution of ductal carcinoma in situ (DCIS) in or around the invasive carcinoma. Compared with DCIS negative for extensive intraductal component, DCIS positive for extensive intraductal component is not sensitive to radiotherapy. Mckissock surgery was applied in breast-conserving surgery for breast cancer in 2016. Jianyi Li and the team members (Shengjing Hospital of China Medical University, Shenyang, China) applied this technique in breast-conserving surgery with preservation of the nipple-areola complex. This surgical technique is suitable for low-grade malignant tumors and has better prognosis than radical mastectomy. The purpose of this study is to investigate postoperative disease-free survival and quality of life after modified radical mastectomy versus expanded Mckissock surgery for extensive intraductal carcinoma of the breast. Results from this study will indicate the efficacy of expanded Mckissock surgery in the treatment of extensive intraducatal carcinoma of the breast.

Sex

Female

Minimum age

45 Years

Maximum age

75 Years

Inclusion Criteria:

* Patients with extensive intraductal carcinoma confirmed by hollow needle biopsy;
* the lesion not involving the nipple as confirmed by enhanced MR imaging of the breast;
* Bra cup size: B or higher;
* postmenopausal patients;
* provision of written informed consent.

Exclusion Criteria:

* The cutting edge of nipple-areola complex tested positive for extensive intraductal carcinoma twice;
* preoperative nipple hemorrhage;
* bilateral breast cancer;
* inflammatory breast cancer;
* distant metastasis;
* other cancers or those who receive chest radiotherapy.