Abstract
A 67-year-old woman admitted for a liver tumor detected incidentally by computed tomography (CT) was found in further CT to have a 4×2.5cm mass at segment 7 of the liver, whose margin was enhanced in the early phase. Magnetic resonance imaging showed a low-intensity mass in T1-weighted imaging and a partially high-intensity mass in T2-weighted imaging. Angiography showed pale tumor staining with hypervascularity in the margin of the tumor. We suspected atypical cholangial cell carcinoma, and conducted right hepatic lobectomy. The tumor was white, clear, and elastically soft, with spiculation. Histopathologically, it showed invasion to the glison sheath with marked hyalinized stroma. The final diagnosis was epithelioid hemangioendothelioma of the liver. We review 63 cases of epithelioid hemangioendothelioma of the liver reported in the Japanese literature. Of these, only 13 were resectable. Preoperative diagnosis of this tumor is generally difficult.
