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Fig. 3. Images of 54-year-old man with no arterial enhancement of HCC in arterial phase CT images.A. Unenhanced CT showed 2.9-cm HCC (asterisk) in segment.

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Presentation on theme: "Fig. 3. Images of 54-year-old man with no arterial enhancement of HCC in arterial phase CT images.A. Unenhanced CT showed 2.9-cm HCC (asterisk) in segment."— Presentation transcript:

1 Fig. 3. Images of 54-year-old man with no arterial enhancement of HCC in arterial phase CT images.A. Unenhanced CT showed 2.9-cm HCC (asterisk) in segment VIII of liver. Black arrow indicates portal vein. B. On arterial phase, mass (asterisk) showed no arterial enhancement compared to surrounding liver. Enhancement of peripheral portal vein represents appropriate late arterial phase (black arrow). Neither radiologist identified arterial enhancement based on arterial phase CT images. Measured absolute HCC enhancement ratio on arterial phase CT was −6.8%. C. On T1-weighted unenhanced MR image, mass (asterisk) showed hypointensity compared to surrounding liver. D. On arterial phase MR image, mass (asterisk) was hyperintense to surrounding liver, representing arterial enhancement. Measured absolute HCC enhancement ratio on arterial phase MR images was 38.2%. E. Subtraction MR image clearly displayed arterial enhancement of index tumor (asterisk). Fig. 3. Images of 54-year-old man with no arterial enhancement of HCC in arterial phase CT images.A. Unenhanced CT showed 2.9-cm HCC (asterisk) in segment VIII of liver. Black arrow indicates portal vein. B. On arterial phase, mass (asterisk) showed no arterial enhancement compared to… Korean J Radiol Feb;20(2):

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