A, Lateral mammogram shows a well-circumscribed mass arrow in the inferior quadrant. B, Ultrasound of this mass shows the typical appearance of a fibroadenoma a solid hypoechoic oval mass. The longest diameter of this lesion is 1.
Finding a lump in your breast can be a scary experience, but not all lumps and tumors are cancerous. One type of benign noncancerous tumor is called a fibroadenoma. While not life-threatening, a fibroadenoma may still require treatment.
Fibroadenoma is a common benign breast lesion and results from the excess proliferation of connective tissue. Fibroadenomas characteristically contain both stromal and epithelial cells. They usually occur in women between the ages of 10 and 40 years.
What is a fibroadenoma? Symptoms of fibroadenoma 3. Types of fibroadenoma 4. Causes of fibroadenoma 5.
Fibroadenomas of the breast are small, smooth, solid, rounded noncancerous lumps composed of fibrous and glandular tissue. See also Overview of Breast Disorders. Fibroadenomas of the breast usually appear in young women, including adolescents.
Breast fibroadenomas are the most common type of non-cancerous breast tumor. They're made up of stroma fibrous connective tissues that support the mammary gland and adenosis lobes that have developed hyperplasia—an enlargement due to an increased rate of cellular reproduction. Many women compare them to marbles, as they are firm and able to be moved around by pressing on the skin.
Fibroadenomas are not cancerous. They range in size from smaller than a marble to as large as a golf ball. Most appear suddenly and stay the same size.
Fibroadenoma is a term that medics use to describe a broad range of solid, benign breast lesions that commonly effect premenopausal women. Fibroadenomas usually develop in the normal breast from the lobuleswhich are the glands responsible for milk production. The surrounding tissue and breast ducts grow over the lobule creating a benign breast tumor or lump.
The cause of fibroadenomas is not known. They may be related to hormones. Girls who are going through puberty and women who are pregnant are most often affected.
Although women of any age can develop fibroadenomas, they usually occur in younger, premenopausal women. A fibroadenoma typically has a well-defined round or oval shape and a rubbery-feeling and is painless. Over time, a fibroadenoma may grow in size or even shrink and disappear. The average fibroadenoma is anywhere from the size of a marble up to 2.