A carcinoma entirely confined to the mammary ducts. It is also known as DCIS. There is no evidence of invasion of the basement membrane. Currently, it is classified into three categories: High-grade DCIS, intermediate-grade DCIS and low-grade DCIS. In this classification the DCIS grade is defined by a combination of nuclear grade, architectural growth pattern and presence of necrosis. The size of the lesion as well as the grade and the clearance margins play a major role in dictating the most appropriate therapy for DCIS.
Synonyms:
exact_synonym:
DCIS; carcinoma in situ of mammary duct; ductal carcinoma in situ; ductal carcinoma in situ (DCIS); ductal carcinoma in situ of breast; ductal carcinoma in situ of the breast; intraductal breast carcinoma; intraductal carcinoma; intraductal carcinoma of breast; intraductal carcinoma of the breast; mammary duct carcinoma in situ; non-infiltrating ductal adenocarcinoma of breast; non-infiltrating ductal adenocarcinoma of the breast; non-infiltrating ductal breast adenocarcinoma; non-infiltrating ductal breast carcinoma; non-infiltrating ductal carcinoma of breast; non-infiltrating ductal carcinoma of the breast; non-infiltrating intraductal adenocarcinoma; non-infiltrating intraductal adenocarcinoma of breast; non-infiltrating intraductal adenocarcinoma of the breast; non-infiltrating intraductal breast adenocarcinoma; non-infiltrating intraductal carcinoma; non-invasive ductal adenocarcinoma of breast; non-invasive ductal adenocarcinoma of the breast; non-invasive ductal breast adenocarcinoma; non-invasive ductal breast carcinoma; non-invasive ductal carcinoma of breast; non-invasive ductal carcinoma of the breast; non-invasive intraductal adenocarcinoma of breast; non-invasive intraductal adenocarcinoma of the breast; non-invasive intraductal breast adenocarcinoma; stage 0 mammary duct carcinoma