Fibroadenoma

What is a fibroadenoma?

A fibroadenoma is a very common benign (non-cancerous) lump. It occurs when there is an overgrowth of the supportive tissue of the breast and overgrowth of the cells that line the milk ducts in the breast.

Fibroadenomas are most common in young women, but they can also occur in older women.

Fibroadenomas respond to hormone changes, so they can change in size according to your menstrual cycle, pregnancy and breast feeding. Sometimes they appear for the first time or grow in post-menopausal women taking hormone replacement.

How are they diagnosed?

Fibroadenomas may form a lump that can be felt by a doctor or patient. They may also be found on imaging such as a mammogram or ultrasound done for another reason.

The diagnosis of a fibroadenoma can be confirmed by taking a sample of cells from the area for a pathologist to examine under the microscope (a biopsy).

How are fibroadenomas treated?

Treatment of a fibroadenoma depends on various factors, such as:

• how big it is (size)

• whether it is producing symptoms such as a lump or pain

• how old you are

• biopsy results

Every woman is different. Some will need a biopsy, some will be suitable for surgical excision while others may require serial ultrasounds. Dr Graham will discuss the options with you and help you to decide on the most appropriate treatment.