PREFACE

In 1894，the American doctor Halsted's concept of breast cancer treatment became the principle and cornerstone of breastsurgery，Halsted theory is the classic form in the world's breast cancer surgery for more than 60 years.It is amile stone in the development of modem cancer medicine.After more than 100 years of developent，breast cancer treatment has embarked on the road of standardized comprehensive treatment.At present，the incidence of breast cancer in China is still on the rise，the concept of evidence-based medicine is changing the basis of breast cancer and clinical research and treatment model.Breast cancer prevention and treatment strategy has evolved from“seek and destroy”in the 20th century to“target and control”in the 21 century；gradually developed to carry out the standardized comprehensive treatment of multi-disciplinary cooperation such as surgicalcentered combined radiotherapy，chemotherapy and biological genes on the basis of a deep understanding of the biological characteristics of tumors.Systematic arrangement and guidance of individualized treatment has become the current treatment characteristics of breast cancer surgery；the treatment change from maximum tolerance to minimum effectiveness is currently the treatment principle of breast surgery；minimally invasive，individualized and humanized treatment is the development direction and trend of breast cancer surgery.The rapid progress of breast surgery is constantly changing many traditional treatment methods，not only significantly improve the cure rate of breast cancer，but also greatly improve the quality of the life after surgery.This book managed detailed summary，including the epidemiology of breast cancer，clinical and imaging diagnosis，surgical treatment，chemotherapy，endocrine therapy，targeted therapy and radiotherapy on the comprehensive diagnosis and treatment of breast cancer process succeeding in achieving both international and domestic guidelines and consensus，but also in line with the actual situation of China's medical treatment.It can be used as a professional tool book or a beginner's learning guide.(https://www.daowen.com)

（Dequan Liu）