Giant juvenile fibroadenoma.

Juvenile fibroadenoma is a common cause of breast masses seen in adolescents and young women. Giant juvenile fibroadenomas are usually single and unilateral. The etiology is thought to be due to increased levels of estrogen during adolescence, although it is not yet fully understood. Treatment options range from simple excision to sub-cutaneous mastectomy according to the size of the lesion. This article aimed to present a case that was diagnosed with "giant juvenile fibroadenoma".