Magnetic resonance imaging diagnosis of hilar cholangiocarcinoma / 中华消化外科杂志

ABSTRACT

Hilar cholangiocarcinoma (HCCA) or Klatskin tumor is a scirrhous adenocarcinoma that arises from the conjunction of bile duct and hepatic ducts.Hepatic magnetic resonance imaging (MRI) and magnetic resonance cholangiopancreatography (MRCP) are important methods for the diagnosis of HCCA.In this article,the clinical data of 42 patients in the Changhai Hospital and 18 patients in the Eastern Hepatobiliary Surgery Hospital who received MRI and MRCP examination from October 2010 to October 2012 were retrospectively analyzed.According to the pathological features,HCCA could be divided into mass-forming type,infiltrating type and intraductal type.Based on the results of imaging examination and intra-and postoperative pathological examination,Bismuth-Corlette types were decided pre-and postoperatively.The coincidence rate of pre-and postoperative Bismuth-Corlette types was 89.7％ (35/39).Infiltration of liver parenchyma was both detected pre-and postoperatively in 19 patients (16 patients were detected by MRI preoperatively),and the sensitivity of MRI was 84.2％ ; vascular invasion was both detected pre-and postoperatively in 10 patients (12 patients were detected by MRI preoperatively),and the sensitivity of MRI was 83.3％ ; hilar and retroperitoneal lymph node metastasis was both detected pre-and postoperatively in 6 patients (4 patients were detected by MRI preoperatively),and the sensitivity of MRI was 66.7％.Combined application of different sequences and techniques of MRI is helpful in the diagnosis,staging and treatment of HCCA.