Role of Surgery for the Primary in Patients With Breast Cancer Stage IV.

Inclusion Criteria: * Healthy breast cancer stage IV patients with resectable primary breast tumor. * Resectable breast cancer stage IV patients who well response of visceral metastasis to systemic therapy and fit for surgery. Exclusion Criteria: * Breast cancer stage IV patients with local complication of primary breast tumor that require surgery for palliation such as uncontrolled bleeding,large and non-healing ulcer or intractable pain. * Breast cancer stage IV patients with unresectable primary breast tumor or extensive chest wall disease.