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Fig. 2 | Cancer Imaging

Fig. 2

From: MRI features predict microvascular invasion in intrahepatic cholangiocarcinoma

Fig. 2

ICC (white thick arrow) with MVI in a 74-year-old man (tumor grade, G3; CA19–9, ≥37 U/ml). a Axial T1W-FS image showing tumor located in the right lobe of the liver and retraction of the hepatic capsule next to the tumor (white thin arrow). The tumor morphology was lobulated. b Axial T2W-FS image showing that the tumor had an unevenly high signal. The signal of the edge was slightly higher while the center signal was very high. c Axial DWI (b = 500 s/mm2) showing a higher signal without the target sign. d Axial arterial phase image showing that the tumor exhibited edged enhancement (ring high signal). The maximum enhancement edge thickness was 1.83 cm (black double arrow) and the arterial edge enhancement ratio was 15.56% (1.83/11.76). e Axial portal venous phase image. f Axial delayed phase image showing that the enhancement ratio of the lesion was approximately 2/4 (2/4 ≤ R < 3/4). g Coronal portal venous phase image showing retraction of the hepatic capsule next to the tumor (white thin arrow). The maximum diameter of the tumor was 11.76 cm (black double arrow). h Axial delayed phase image showing intrahepatic duct dilatation adjacent to the tumor (white thin arrow). i Axial arterial phase image showing visible hepatic artery penetration (white thin arrows)

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