Clinical practice guidelines for ductal carcinoma in situ: Chinese Society of Breast Surgery (CSBrS) practice guidelines 2021

Ductal carcinoma in situ(DCIS),also known as intraductal carcinoma,is an in situ carcinoma limited to the mammary ducts.The gold-standard screening,diagnostic,and treatment options have long been controversial.The Chinese Society of Breast Surgery(CSBrS)has re-evaluated the quality of the clinical study evidence on DCIS.In order to standardize the diagnosis and treatment of DCIS and provide a reference for Chinese breast surgeons,the CSBrS has used the Grading of Recommendations Assessment,Development,and Evaluation handbook while referring to its feasibility in the actual clinical practice of Chinese breast surgeons to develop the CSBrS Clinical Practice Guideline for the Diagnosis and Treatment of Ductal Carcinoma In Situ(2021).