LCIS

Lobular Carcinoma in Situ (LCIS) is a condition in which abnormal cells are found in the lobules of the breast. Although it is not a cancer, it indicates that a person is at higher risk of developing breast cancer later.

Overview

LCIS is often found when a biopsy is done for another breast problem. It does not cause a lump that can be felt, nor does it show up on a mammogram. This condition does not have any symptoms and is usually not found until a biopsy is done for some other reason.

Causes

The exact cause of LCIS is not known. However, it is believed to occur when cells in one or more lobules of the breast grow abnormally.

Diagnosis

LCIS is usually found during a biopsy for another breast condition. It does not cause a lump that can be felt, nor does it show up on a mammogram.

Treatment

LCIS itself does not need to be treated. However, because it increases the risk of developing invasive breast cancer, it is important to have regular mammograms.

Prognosis

LCIS is not a cancer, but people with this condition have a higher risk of developing invasive breast cancer in either breast.

See also

• Breast cancer
• Invasive lobular carcinoma
• Mammography

References

LCIS Resources
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