"Bull’s eye” appearance of hepatocellular adenomas in patients with glycogen storage disease type I — atypical magnetic resonance imaging findings: Two case reports

Figure 2 A 17-year-old man glycogen storage disease type I undergoing gadoxetate disodium–enhanced magnetic resonance imaging exam. A-D: On (A and B) T2-weighted images, two peripheral lesions (arrows) show a markedly heterogenous hyperintense core compared to the surrounding liver and a slightly hyperintense rim. T1-weighted three-dimensional spoiled gradient-echo sequences demonstrate enhancement of the core of the lesions during the arterial phase (C and D); E and F: During the portal venous phase, enhancement persists in the core of the lesions, whilst enhancement appears at the periphery of the lesions; G: During the hepatobiliary phase, the lesions show hypointensity of the central core compared with the background liver and marked contrast retention at the periphery of the lesions.