Fibroadenoma

Fibroadenoma



Gus Gibbons Emmick, MD



Basic Information



Definition


Fibroadenoma is a benign neoplasm of the breast that is characterized by localized proliferation of breast ducts and stroma.



Synonym



Biphasic tumor (i.e., tumor involving epithelial and stromal elements)


ICD-9-CM Code



217.00 Fibroadenoma of breast


Epidemiology & Demographics



• Fibroadenomas account for 70% to 95% of biopsied breast masses in adolescents.

• These neoplasms are uncommon in males.

• The incidence tends to peak in late adolescence (17 to 20 years), but fibroadenomas can occur up to 2 years before menarche.


Clinical Presentation



• Usually, the fibroadenoma is identified as an asymptomatic, incidental breast mass on examination by the patient or examiner. It is a nontender, rubbery mass, and it enlarges over several weeks or months.

• The mass does not vary significantly in size during menstrual cycles, but it can grow significantly with large fluctuations in estrogen, especially during pregnancy.

• Nipple discharge does not occur.

• The fibroadenoma usually slips easily under examining fingers.

• It is usually unilateral; 25% of cases are bilateral or multiple growths.

• Large lesions can produce symptoms that are associated with malignancy, including peau d’orange and enlarged superficial veins.

• Can be 3 to 4 cm at the time of discovery, and if not removed, it can grow up to 15 cm in diameter.

• It can be found in any quadrant, but it is more common in the upper, outer quadrants.

• It is more common in black girls.


Etiology



• Fibroadenoma is likely a hormonally dependent form of nodular hyperplasia.
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Jun 19, 2016 | Posted by in PEDIATRICS | Comments Off on Fibroadenoma

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