Benign Myoepithelioma

What it is

Myoepithelioma is a harmless growth made of myoepithelial cells. These are special, muscle-like cells that normally wrap around your milk ducts and glands. They help gently push milk out during breastfeeding.

How common it is

Benign myoepithelioma is very rare in the breast. These growths can happen in other parts of the body as well.

What you may notice

You might feel a firm, smooth lump in your breast that can be moved under the skin. It is usually not painful or tender.

What can contribute

Doctors do not know the exact cause of myoepithelioma. These growths seem to happen on their own and are not linked to any known habits or risk factors.

How it is usually checked

To understand what a lump is, a provider will likely start with a physical exam and imaging, like a mammogram or ultrasound. To be certain, they may suggest a biopsy, where a tiny sample of tissue is taken to be looked at under a microscope.

Does this change my long-term risk?

Finding a benign myoepithelioma does not change your long-term breast health risk. Your provider will let you know what follow-up, if any, is needed for you.

Comfort and everyday care

• Wearing a supportive, comfortable bra can help ease general breast discomfort.
• Gentle movement and activities you enjoy can help reduce stress and support your overall well-being.
• Some women find that keeping a simple journal of their symptoms can be helpful when talking with a provider.

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.