Most paragangliomas are located in adrenal glands but 22% arise from extra-adrenal
position. Primary hepatic paragangliomas are rare tumors and their imaging features have not been
documented in detail in radiology literatures. We describe a case of pathologically proven primary
non-functioning hepatic paraganglioma, which revealed a heterogeneously enhancing mass with
internal cystic degeneration misdiagnosed as HCC or FLHCC on contrast-enhanced CT and MRI,
restricted diffusion on DWI and ADC mapping and abundant vascularity on 3D-CTA.
Keywords: Hepatic paraganglioma, primary, non-functioning, magnetic resonance imaging, computed tomography, pathology,
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