Brain metastases (BM) are the most common intracranial tumors in adults and source of the most common neurological complications of systemic cancer. Surgery and radiation therapy are the most important components in the management of BM with the goal to prolong survival and improve the quality of life. Whole brain radiotherapy (WBRT) has shown to increase local and distant control both with and without surgical resection. However, patients who develop a new or recurrent BM after WBRT and undergo resection are left without adjuvant therapy options. Local recurrence particular in patients with single metastasis does effect both survival and quality of life. In individual cases the option of additional radiotherapy has been suggested and applied. We seek to evaluate the addition of a stereotactic radiosurgery (SRS) boost to the resection cavity both as adjuvant and salvage procedure among patients, who undergo resection of a BM and previously received WBRT or decline WBRT. Goal is to show superior local brain control.