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Breast Cancer

  • Posted: 09/26/2012

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The Breasts

Inside a woman's breast are 15 to 20 sections (lobes). Each lobe is made of many smaller sections (lobules). Lobules have groups of tiny glands that can make milk.

After a baby is born, breast milk flows from the lobules through thin tubes (ducts) to the nipple. Fibrous tissue and fat fill the spaces between the lobules and ducts.

Diagram of the breast

This picture shows the lobes and ducts inside the breast. It also shows lymph nodes near the breast.

This text may be reproduced or reused freely. Please credit the National Cancer Institute as the source. Any graphics may be owned by the artist or publisher who created them, and permission may be needed for their reuse.