Bilateral Giant Juvenile Fibroadenoma of the Breast Developing Metachronously in a 10‑Year‑Old Girl

Abstract

Giant juvenile fibroadenoma (GJF) is very rare and represents about 0.5% of all fibroadenomas. We describe a case of a 10‑year‑old premenarche girl that presented with huge bilateral GJFs. The right breast mass appeared first and was managed accordingly. The left mass developed rapidly within three months necessitating a second subtotal mastectomy.