entire dynamic study (p < 0.05). Pathologically, the Purpose: To examine the characteristic features of lesion center consisted of reduced cellularity with myx- hepatic epithelioid hemangioendothelioma (HEH) on ohyaline stroma and necrosis. magnetic resonance imaging (MRI) using Gd-EOB- Conclusion: Core pattern can be considered a new DTPA. diagnostic sign of HEH. Material and methods: Twelve patients (mean age, 50 years; male:female = 6:6) who were pathologically Key words: Hepatic epithelioid confirmed to have HEH in two tertiary institutions were hemangioendothelioma—Hepatobiliary retrospectively investigated. For qualitative analysis, the phase—MRI—Gd-EOB-DTPA MRI features of HEH including core pattern were characterized, and lesions were divided into core and non-core groups. For quantitative analysis, standardized Hepatic epithelioid hemangioendothelioma (HEH) is a mean signal intensities (SI ) measured at the tumor st rare tumor of vascular origin with unknown etiology and center, periphery, and liver parenchyma were plotted low to intermediate malignancy potential [1–3]. In con- against the dynamic phases. Differences in SI between st trast to other vascular tumors such as angiosarcoma or the core and non-core group were calculated for the hemangioma, HEHs consist of dendritic and epithelioid tumor center and periphery. We also examined the tumor cells infiltrating hepatic sinusoidal spaces [3, 4].
Abdominal Radiology – Springer Journals
Published: Apr 1, 2017
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