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What is DCIS in medical terms?

Published in Breast Cancer Pathology 1 min read

DCIS, or Ductal Carcinoma In Situ, is a non-invasive form of breast cancer.

Understanding DCIS

DCIS is characterized by malignant (cancerous) cells that are confined to the milk ducts of the breast and have not spread to surrounding tissue. In simpler terms, the cells lining the milk ducts have become cancerous but remain "in situ," meaning "in place".

Key Aspects of DCIS

Aspect Description
Location Milk ducts of the breast.
Cell Type Malignant (cancerous).
Invasion Non-invasive; cells have not spread beyond the milk ducts.
Significance Considered a precursor to invasive breast cancer if left untreated.

Additional Information

Because DCIS is contained within the milk ducts, it's considered non-invasive. However, if left untreated, it can potentially develop into invasive breast cancer, where the cancerous cells spread beyond the ducts. This is why early detection and treatment are crucial.

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