LCIS (Lobular carcinoma in situ)

LCIS is a rare breast condition that doctors consider to be non-cancerous (‘benign’). However, there is a link between having LCIS and developing breast cancer later in life.

If you have LCIS, it means abnormal cells have formed in the milk glands (‘lobules’) in the breast.

People with LCIS have a very good prognosis. The evidence shows that LCIS does not need to be surgically removed or treated in other ways to maintain that good prognosis.

We explain the condition, how it is diagnosed, and when treatment may be necessary.