(A) Enlarging fibroadenoma of the left breast and giant fibroadenoma of the right breast in a 17- year-old female. (B) Giant fibroadenoma measuring 5.7 × 5.8 × 5.0 cm. Note the solid, multinodular, well-circumscribed features of the mass. The left breast fibroadenoma (not shown) measured 2.7 × 2.4 × 2.2 cm. (C) Intraoperative incision planning by the breast surgeon and the plastic surgeon. Immediate breast reconstruction was planned due to the large size of the right breast mass and anticipated breast asymmetry following excision. Local advancement flaps of superior and inferior breast tissue were performed via a vertical scar mastopexy approach. (D) Right breast defect postresection of giant fibroadenoma, involving the upper-outer quadrant. (E) Postoperative result at one year. (Courtesy of Valerie Lemaine, MD, MPH, FRCSC)