Fibroadenoma is a common benign breast tumor in young women, with its peak incidence occurring between the ages of 20 and 25, followed by the age ranges of 15–20 and 25–30. Approximately 75% of cases are solitary, while a smaller percentage are multiple.
Etiology
This condition results from an abnormally heightened sensitivity of lobular fibrocytes to estrogen, which may be related to qualitative or quantitative abnormalities in the estrogen receptors present in fibrocytes.
Clinical Manifestations
The tumor typically presents as a round or lobulated, smooth-surfaced, mobile, painless mass in the breast, with a firm, rubbery texture. Apart from the mass, patients often do not experience significant subjective symptoms. The tumor generally grows slowly but may enlarge noticeably during pregnancy. Menstrual cycles have little to no effect on the size of the mass.
Treatment
Surgical excision is the main treatment method. The tumor, along with its capsule, is removed as a whole, preferably including a small amount of surrounding normal breast tissue. The excised tissue undergoes routine pathological examination.