Primary clear cell carcinoma in the liver: CT and MRI findings

Figure 1 Primary clear cell carcinoma of the liver in a 47-year-old woman. A: On pre-contrast computed tomography scan, the mass shows slight hyper-attenuation with a hypo-attenuation halo (arrows); B: At hepatic arterial phase, the mass shows early enhancement; C: At the equilibrium phase, the mass presents hypo-attenuation with rim enhancement (arrows); D: At portal venous phase, the reconstructed coronal image shows the mass with a discontinuous liver capsule (arrows) at Segment VI, indicating tumor rupture, which was surgically confirmed; E: Pathologically, the mass shows a pseudocapsule (arrows) (HE, × 100).