Different imaging findings of inflammatory myofibroblastic tumor of the liver

Figure 1 Ultrasonography images of the liver inflammatory myofibroblastic tumor. A: Conventional ultrasonography showing a 3.8 cm × 4.6 cm hypoechoic mass in the right anterior lobe of the liver, with a clearly defined border (white arrows); B: Arterial-phase images showing a hyperenhanced mass on the liver (white arrows); C: Portal venous-phase images showing slight enhancement and wash-out of the mass, which corresponded to that seen on arterial-phase images (white arrows); D: Parenchymal-phase images showing further wash-out of the mass, which corresponded to that on arterial-phase images (white arrows).