Definition of Fibroadenoma – breast
Fibroadenoma of the breast is a benign (noncancerous) tumor.
Causes, incidence, and risk factors
Fibroadenoma is the most common benign tumor of the breast and the most common breast tumor in women under age 30. Fibroadenomas are usually found as single lumps, but about 10 – 15% of women have several lumps that may affect both breasts.
Lumps may be:
Signs and tests
After a careful physical examination, one or both of the following tests are usually done to determine further information:
A biopsy is needed to get a definite diagnosis. Women in their teens or early 20s may not need a biopsy if the lump goes away on its own.
The outlook is excellent, although patients with fibroadenoma have a slightly higher risk of breast cancer later in life. Lumps that are not removed should be checked regularly by physical exams and imaging tests, following the doctor’s recommendations.
David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Debra G. Wechter, MD, FACS, General Surgery practice specializing in breast cancer, Virginia Mason Medical Center, Seattle, Washington. – 12/17/2009