Resection of breast cancer brain metastases: A single institution experience.

e11569 Background: Resection of a single brain metastasis (SBM) in metastatic cancer has been shown to improve overall survival (OS). A previously reported series from MD Anderson of breast cancer patients undergoing SBM resection reported a median overall survival of 19 months. We report our experience of SBM resection for breast cancer. Methods: Retrospective observational study of patients who underwent resection of SBM from breast cancer brain in a tertiary referral centre from 2000-2011. Results: 20 patients underwent SBM resection from 2000-2011. All patients received WBRT after surgery. 2 patients had progressive metastatic disease presenting as brain metastases. Median time from original breast cancer diagnosis to development of SBM was 53 months (range:1-286months). 9 patients had solitary brain metastases (no metastases elsewhere) and 11 patients had synchronous metastases elsewhere. Regarding the primary breast tumour: 41% of patients were ER+, 57% were HER2+ and 25% were triple negative. 1 pat...