%0 Journal Article %T Pathologic features and clinical treatment of sarcomatoid intrahepatic cholangiocarcinoma. %A Xie X %A Lai N %A Yang Y %A Zhang J %A Qin J %A Sheng X %J Intractable Rare Dis Res %V 12 %N 4 %D 2023 Nov %M 38024583 暂无%R 10.5582/irdr.2023.01094 %X The current study examined sarcomatoid intrahepatic cholangiocarcinoma (S-iCCA). S-iCCA was a more aggressive subtype of intrahepatic cholangiocarcinoma (iCCA). Early detection and complete resection of tumors are very important. Reported here is a case of S-iCCA, and the diagnosis and treatment of S-iCCA are discussed. The patient underwent a tumor resection and was treated with chemotherapy and molecularly targeted drugs after surgery. The clinical pathologic features and treatment of S-iCCA are discussed based on the literature. An immunohistochemical examination revealed positivity for cytokeratin 7 (CK7), CK-pan, vimentin, and CK19 and negativity for hepatocyte paraffin 1 (HepPar-1) in sarcomatoid cells. This case suggests that the particular molecular characteristics of sarcomatoid cells have great clinical diagnostic value, and comprehensive treatment of S-iCCA based on surgery is described.