Congenital Extrahepatic Portosystemic Shunts: Spectrum of Findings on Ultrasound, Computed Tomography, and Magnetic Resonance Imaging

Figure 11

A 4-year-old boy with vague upper abdominal pain and abdominal distension since he was 2 years old. Axial T1-W image (a) shows multiple well-defined hyperintense lesions (arrows). The lesions are hypointense on T2-W images (b, arrows). Slight arterial hyperenhancement is seen with the lesions (c, arrows). There is retention of contrast in the portal venous phase (d, arrows). Hepatobiliary phase image (e) shows retention of contrast (arrows). Arrow head points to biliary excretion of contrast into gallbladder. Imaging features favouring nodular regenerative hyperplasia include multiple lesions, T1-W hyperintensity, arterial hyperenhancement, and retention of contrast on portal venous and equilibrium phases.

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