Abstract
Surgical treatment of perihilar cholangiocarcinoma (PCC) is the treatment of choice that can achieve long term results. Unfortunately the presence of lymph node metastases is frequent and it is one of the major negative prognostic factors in patients submitted to surgery. In literature there are few data about the prognostic significance of location, number and ratio of involved nodes. Moreover guidelines about the extent of lymph node dissection are not available. In this commentary the data of literature about prognostic significance of lymph node involvement are described and analysed.
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