A Prepubertal Giant Juvenile Fibroadenoma: Case Report and Brief Literature Review

Introduction: Giant juvenile fibroadenomas represent 0.5% of all fibroadenomas, constituting a rare condition in the adolescent age group. In prepuberty, the presence of this condition is extremely rare.

Case Presentation: We describe a rare case of a 12- year-old girl who presented to our hospital with a rapidly enlarging palpable mass in her left breast that she first noticed 2 months ago. She has not attained menarche yet. Physical examination shows a giant mass of approximately 12 cm in the left breast. The patient was further evaluated via ultrasonography showing a sole large lesion of 12 × 8 cm in the left breast. A surgical excision under general anaesthesia was performed. Histopathological findings post-surgery was suggestive of a giant juvenile fibroadenoma. Patient is on regular follow-up with no signs of recurrence.

Conclusion: Giant juvenile fibroadenomas should be included as a differential diagnosis in prepubertal girls with a breast mass. Even though they are very rare in prepuberty, they tend to have a great psychological impact. The treatment should aim at early complete surgical excision and good cosmesis.