Pathological complete response following neoadjuvant chemotherapy for locally advanced intrahepatic cholangiocarcinoma.

Background: Intrahepatic cholangiocarcinoma (ICC) is the second most common primary liver cancer. Cases when found are often advanced with vascular invasion, and radical resection is often difficult. Despite curative resection, the postoperative recurrence rate of patients with histological lymph node metastasis is high, and their prognosis is poor.