Abstract
We report a case of a juvenile breast fibroadenoma in a 12-year-old girl, with related documentation. She first noticed a mass in the right breast 6 months ago and consulted our hospital. On physical examination, a 7-cm elastic hard mass was palpated in her right breast. Ultrasonography revealed a 7-cm diameter hypoechoic solid mass with clear margins. Fine needle aspiration cytology revealed that it was composed of epithelial cells and stromal elements without any evidence of malignancy. The imaging test findings led to us to consider the possibility of a benign mass of the breast. Tumor excision was performed and the diagnosis of juvenile breast fibroadenoma was made on histopathological examination of the resected specimen. The postoperative breast deformity was minimal despite the large size of the extracted mass. Juvenile breast fibroadenoma is rare in the pediatric population, especially at school age. Young women, especially those at school age, can expect development of the remaining normal breast gland postoperatively ; therefore fibroadenoma in this age group should be treated to maximize breast conservation.
