Repair of Breast Defect by Transfer of a Contralateral Internal Mammary Artery Perforator Flap

This is a case report of a patient with a borderline phyllodes tumor in the left breast. Seventeen months after the resection of the phyllodes tumor from the patient's left breast, the tumor occurred again 5 months ago in the surgical region. A large defect was generated after the extended resection of the left breast mass, and it was repaired with a contralateral internal mammary artery perforator flap. After the operation, bilateral breast symmetry was good, and the patient was satisfied with the shape of the breast. Postoperative follow-up was performed for 15 months, and no local recurrence was observed.