Fig. 5

Histopathological examinations of liver tumor and lymph node. Poorly differentiated adenocarcinomas in the liver tumor (a H&E, magnification:100×) and lymph node (b H&E, magnification:40×) are shown. Liver tumor involves desmoplastic change. Pleomorphic or fusiform giant cells in the liver tumor (c H&E, magnification:100×) and obscure transition between adenocarcinoma and sarcomatous components (d H&E, magnification:20×) are shown. Immunohistochemical (IHC) examination shows desmin positivity (e magnification:100×) and vimentin negativity (f magnification:100×) in the liver tumor