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46. 9%, p=0. 018). percentage [HR], 3. 22; p=0. 053). Tumor size, histologic grade, estrogen receptor (ER), progesterone receptor (PR), hormonal therapy, and curative chemotherapy status were associated with RFS. Larger tumor size, higher histologic grade, lack of ER and PR manifestation, and no hormonal therapy were associated with decreased OS. Tumor size was associated with LRRFS in the multivariate analyses (HR, 4. 19; p=0. 048). However , preoperative MRI was not significantly associated with LRRFS, RFS, or OS in either univariate or multivariate analyses. == Realization == Preoperative MRI did not influence Rabbit Polyclonal to MYL7 survival outcomes in T12 breast cancer patients who also underwent BCT. Routine utilization of preoperative MRI in T12 breast cancer may not translate into longer RFS and OS. Keywords: Breast neoplasms, Magnetic resonance imaging, Segmental mastectomy, Survival == LAUNCH == Surgical treatment is the most important treatment strategy for Berbamine hydrochloride breast cancer. Breast-conserving therapy (BCT), comprising breast conserving surgery accompanied by breast radiation therapy, has been regarded as on doble with mastectomy as a regular surgical treatment once it was confirmed that the strategy was not second-rate in terms of survival outcomes in contrast to total mastectomy [1, 2]. However , some breast cancers possess multicentric or multifocal lesions in the ipsilateral breast [3, 4], and these unexpected lesions may persist after breast-conserving surgery and cause locoregional recurrences [5, 6]. Accordingly, surgeons need accurate preoperative imaging along with careful physical examinations to develop a precise surgical plan. Standard preoperative imaging studies consist of mammography and breast ultrasonography. Recently, breast magnetic resonance imaging (MRI) has also been used for preoperative breast imaging [7]. The clinical part of preoperative MRI in patients with early breast cancer is controversial. Some investigators insist that preoperative MRI offers highly sensitive imaging that can help discover satellite lesions that cannot be detected with other conventional imaging methods [8, 9]. Others argue that the low specificity of MRI leads to extra imaging with minimal benefit or an increase in the rates of unnecessary total mastectomy [10, 11]. Particularly, recent studies suggest that preoperative MRI is usually not associated with reducing positive margins in patients who also receive BCT [12, 13]. Furthermore, MRI imaging may lead clinicians to do total mastectomies more frequently in patients with early breast cancer because of the detection of more subclinical satellite nodules that may be controlled by adjuvant radiation therapy [14, 15]. Because of this, those investigators suggested that preoperative MRI should be deserted in program practice to get patients with early breast cancer. Several guidelines, including all those from the National Comprehensive Malignancy Network and the Korea Breast Cancer Society, designate that Berbamine hydrochloride preoperative MRI can be Berbamine hydrochloride utilized for specific clinical situations such as neoadjuvant settings and locally advanced breast cancer [16, 17]. Berbamine hydrochloride To date, most studies regarding preoperative MRI have centered on the detection of additional cancerous lesions in the breast, and few studies have looked into clinical final results of preoperative breast MRI. We evaluated the effect of preoperative MRI on survival outcomes in patients with early breast cancer. == METHODS == == Patient characteristics == We retrospectively examined the information of 1, 025 patients between 2007 and 2010 who also underwent definitive breast-conserving surgical treatment for T12 breast cancer. Individuals with inflammatory breast cancer, phyllodes tumor, Paget’s disease, neoadjuvant chemotherapy, distant metastasis, or lack of radiation therapy after breast conserving surgical treatment were excluded. Ultimately, 954 patients were included in the analysis and divided into two organizations according to whether they received preoperative MRI or not. To evaluate the clinicopathologic features between two organizations, the following variables were examined: age, tumor size, nodal status, subtype, grade, estrogen receptor (ER) and progesterone receptor (PR) status, chemotherapy and radiation therapy status, and locoregional or systemic Berbamine hydrochloride recurrence events. Authorization for the study was awarded by the Institutional Review Table of Yonsei University Hospital (number: 2015-0017). ==.