Hepatic Epithelioid Hemangioendothelioma: Vascular Penetration in the Tumor as a Characteristic Imaging Finding

Rin Iraha, Masahiro Okada, Shimpei Kuniyoshi, Shingo Arakaki, Tomotaka Iraha, Ryo Kinoshita, Masanao Saio, Naoki Yoshimi, Yuko Iraha, Mikiko Tanabe, Kazushi Numata and Sadayuki Murayama

Primary Hepatic Epithelioid Hemangioendothelioma (HEH) is a rare, low-grade, malignant hepatic neoplasm. Here we present the typical CT and MRI features of HEH in a 35 year old young woman, which were confirmed by needle biopsy. The most significant CT and MRI imaging findings were capsular retraction and peripheral location with slow progression. In addition, there were multiple hypermetabolic liver tumors seen on FDG-PET/CT and hepatic arterial penetration of the tumor on Dynamic CT (DCT), which may be useful in the diagnosis of HEH.