Neurofibromatosis of the Breast

What it is

Neurofibromatosis of the breast is when growths made of nerve tissue, called neurofibromas, appear in the breast. These growths are benign. This usually happens as part of a genetic condition called neurofibromatosis type 1, or NF1, that can cause these growths to form on nerves anywhere in the body.

How common it is

Having neurofibromas in the breast is very rare, even for people who have the NF1 genetic condition.

What you may notice

You might feel one or more smooth, rubbery, or soft lumps in your breast. They are usually painless unless they grow large enough to press on nearby tissues, which could cause some discomfort.

What can contribute

This condition is caused by a specific genetic trait, usually inherited from a parent, known as neurofibromatosis type 1 (NF1).

How it is usually checked

Your provider will likely start with a clinical breast exam and ask about your family health history. To get a closer look, they may suggest imaging like a mammogram or an ultrasound. A biopsy, where a small sample of tissue is removed and tested, is the only way to be certain what a lump is.

Does this change my long-term risk?

The neurofibromas themselves are benign. Women with NF1 do have a higher long-term breast health risk, so many providers suggest starting regular breast imaging earlier, often around age 30.

Comfort and everyday care

• Wearing a soft, supportive, wire-free bra can help reduce pressure on any tender areas.
• Gentle massage or mindful movement like yoga may help with general body comfort.
• Some women find that using a warm compress on the breast can help soothe discomfort.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.