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About 10% breast cancers diagnosed are invasive lobular
carcinoma, in nature. This means that the cancer is growing in
the cells that line the lobules of the breast. Invasive lobular
cancer can develop in women of any age. ILC is prevalent in
women between 45 and 55 years. However, it is also possible for
men to get invasive lobular breast cancer, but this is very
rare. Invasive Lobular Carcinoma (ILC) starts in the
milk-producing lobules and then breaks into the surrounding breast tissue. ILC can also spread to more distant parts of your body. With this type of cancer, you typically won't feel a distinct, firm
lump but rather a fullness or area of thickening.
The graphic shown below is of a normal breast with
Invasive Lobular Carcinoma (ILC)
presented in the enlarged section.
 Breast profile: [A] Ducts
[B] Lobules
[C] Dilated section of milk duct
[D] Nipple
[E] Fat
[F] Pectoralis major muscle
[G] Chest wall/rib cage
Enlargement: [A] Normal lobular cells
[B] Lobular cancer cells
[C] Base membrane
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