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Overview of the treatment of newly diagnosed, non-metastatic breast cancer

Alphonse Taghian, MD, PhD
Moataz N El-Ghamry, MD
Sofia D Merajver, MD, PhD
Section Editor
Daniel F Hayes, MD
Deputy Editor
Sadhna R Vora, MD


Globally, breast cancer is the most frequently diagnosed cancer and the leading cause of cancer death in women. In the United States, breast cancer is the most commonly diagnosed cancer and the second most common cause of cancer death in women. In addition, breast cancer is the leading cause of death in women ages 40 to 49 years.

Breast cancer is treated with a multidisciplinary approach involving surgical oncology, radiation oncology, and medical oncology, which has been associated with a reduction in breast cancer mortality [1].

This topic will provide an overview of the initial treatment of breast cancer and posttreatment surveillance. The epidemiology, clinical manifestations, diagnosis, staging of breast cancer, and specific discussions of the multimodality treatments for early breast cancer and the approach to metastatic disease are discussed elsewhere. (See "Clinical features, diagnosis, and staging of newly diagnosed breast cancer" and "Systemic treatment for metastatic breast cancer: General principles" and "Metastatic breast cancer: Local treatment".)

Because ductal carcinoma in situ (DCIS) and invasive breast cancer are managed differently, we will restrict discussion in this topic to invasive breast cancer. A discussion on DCIS is covered separately. (See "Breast ductal carcinoma in situ: Epidemiology, clinical manifestations, and diagnosis" and "Ductal carcinoma in situ: Treatment and prognosis".)  


The vast majority of patients with newly diagnosed breast cancer in the United States and developed countries have no evidence of metastatic disease. For these patients, the treatment approach depends on the stage at presentation. For treatment purposes, breast cancer is characterized using the Tumor, Node, Metastases system (TNM) (table 1):


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Literature review current through: Sep 2016. | This topic last updated: Aug 10, 2016.
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