High Grade DCIS
Ductal-carcinoma-in-situ (dcis) is a type of cancer
where the cancer cells are confined within the milk ducts where they originate.
This is often considered a "pre-cancer" due to the inability of these cancers to spread outside the breast. The grade of a cancer describes how rapidly the cells are dividing; the higher the grade, the higher the risk of invasive cancer if left untreated.