What tissue is DCIS cells found in?
Ductal carcinoma in situ (DCIS) DCIS means that some cells in the lining of the ducts of the breast tissue have started to turn into cancer cells. These cells are all contained inside the ducts. They have not started to spread into the surrounding breast tissue.
How is ductal carcinoma different from in situ?
Ductal means that the cancer starts inside the milk ducts, carcinoma refers to any cancer that begins in the skin or other tissues (including breast tissue) that cover or line the internal organs, and in situ means “in its original place.” DCIS is called “non-invasive” because it hasn’t spread beyond the milk duct into …
What is ductal carcinoma in situ component?
Ductal carcinoma in situ (DCIS) is the presence of abnormal cells inside a milk duct in the breast. DCIS is considered the earliest form of breast cancer. DCIS is noninvasive, meaning it hasn’t spread out of the milk duct and has a low risk of becoming invasive.
What is the difference between ductal carcinoma in situ and invasive carcinoma of the breast?
In situ breast cancer (ductal carcinoma in situ or DCIS) is a cancer that starts in a milk duct and has not grown into the rest of the breast tissue. The term invasive (or infiltrating) breast cancer is used to describe any type of breast cancer that has spread (invaded) into the surrounding breast tissue.
How fast does ductal carcinoma in situ grow?
It assumes that all breast carcinomas begin as DCIS and take 9 years to go from a single cell to an invasive lesion for the slowest growing lesions, 6 years for intermediate growing DCIS lesions, and 3 years for fast-growing DCIS lesions.
What is the survival rate for ductal carcinoma in situ?
Generally, patients diagnosed with DCIS have an excellent long-term breast-cancer-specific survival of around 98% after 10 years of follow-up24–27 and a normal life expectancy.
Does ductal carcinoma in situ spread?
Because DCIS hasn’t spread into the breast tissue around it, it can’t spread (metastasize) beyond the breast to other parts of the body. However, DCIS can sometimes become an invasive cancer.
Is ductal carcinoma in situ fatal?
DCIS refers to abnormal cells that are confined to the milk ducts. These cells have not yet spread into the surrounding normal breast tissue and cannot spread elsewhere in the body. It’s more of a precancer, or preinvasive lesion. So DCIS isn’t life-threatening, but it has the potential to become invasive cancer.