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 Indian J Med Microbiol  
 

Figure 4 (A-D): Hilar cholangiocarcinoma with early enhancement. (A) Axial unenhanced CT shows a low density mass (white single arrow) anterior to portal vein (white double arrow). (B) Axial arterial phase scan shows hyperattenuating mass at primary confluence (white single arrow). (C and D) Progressively decreased attenuation of mass on venous (white single arrow in C) and delayed phase (white single arrow in D)

Figure 4 (A-D): Hilar cholangiocarcinoma with early enhancement. (A) Axial unenhanced CT shows a low density mass (white single arrow) anterior to portal vein (white double arrow). (B) Axial arterial phase scan shows hyperattenuating mass at primary confluence (white single arrow). (C and D) Progressively decreased attenuation of mass on venous (white single arrow in C) and delayed phase (white single arrow in D)