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

<div>A 9-year-old boy with bleeding per rectum since he was 1 year old. A well-defined slightly hyperechoic lesion (arrow) with subtle hyperechoic rim (arrow head) is seen. This refers to carol atoll sign in nodular regenerative hyperplasia.</div>

Radiology Research and Practice

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Figure 4

Figure 4: Congenital Extrahepatic Portosystemic Shunts: Spectrum of Findings on Ultrasound, Computed Tomography, and Magnetic Resonance Imaging 