AI Summary

Researchers at McGill University discovered that immune cells, which usually defend against infection, can also promote the progression of certain early breast cancers. The finding highlights a potential method for differentiating ductal carcinoma in situ (DCIS) cases that are likely to remain non‑invasive from those that may become invasive. This distinction is a major challenge in breast cancer management.

AI summaries can be wrong sometimes—always verify important details using the source article.