title: Gd-EOB-DTPA-enhanced and diffusion-weighted magnetic resonance findings in hepatic epithelioid angiomyolipoma: A case report.
abstract: The present study reports a case of histologically proven hepatic epithelioid angiomyolipoma that was evaluated with gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging and diffusion-weighted imaging. A 23-year-old female was admitted to the Northern Jiangsu People's Hospital (Yangzhou, Jiangsu, China) due to a 5.6-cm mass in the liver, and a right partial hepatectomy was performed. Magnetic resonance imaging (MRI) revealed a hypointense mass on T1-weighted imaging, and a hyperintense mass on T2-weighted and diffusion-weighted imaging, with a higher apparent diffusion coefficient value compared with normal liver parenchyma. On the dynamic Gd-EOB-DTPA-enhanced MRI scan, the lesion manifested as hypervascular with multiple filiform vessels and a pseudocapsule image, and in the hepatobiliary phase the lesion demonstrated a lack of contrast retention, thus appearing hypointense compared with the background liver. Pre-operatively, EMAL was diagnosed on the basis of these findings in the tumor. The optimum treatment is complete surgical excision and subsequent follow-up. The patient was healthy and free from recurrence at 6 months and 1 year post-surgery. Therefore, knowledge of EAML specific features on dynamic Gd-EOB-DTPA-enhanced and DWI scans may improve the diagnostic accuracy of hypervascular hepatic tumors and may facilitate treatment selection.
authors.affiliation: Department of Radiology, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Sun
authors.affiliation: Department of Radiology, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.
authors.forename: Shouan
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Radiology, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.
authors.forename: Wenxin
authors.initials: W
authors.lastname: Chen
authors.affiliation: Department of Radiology, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.
authors.forename: Jingtao
authors.initials: J
authors.lastname: Wu
keywords: diffusion-weighted imaging; epithelioid angiomyolipoma; liver; magnetic resonance contrast agents; magnetic resonance imaging