Background: HER2 positive disease accounts for 15-20% of early breast cancer. Achieving a pathological complete response after neoadjuvant chemotherapy (NACT) improves prognosis and decreases risk of recurrence.
Case Report: Our case report aimed to highlight an emblematic clinical success and benefit of NACT with the addition of pertuzumab to the standard trastuzumab/taxane/anthracycline combination in a patient with a 9 cm breast neoplasm and extensive lymph node involvement (>4 pathological lymph nodes).