Contrast enhanced ultrasound in diagnosing liver lesion that spontaneously disappeared: A case report

Figure 1 A 46-year-old male patient with focal liver lesions involving the right lobe of the liver. A: Routine computerized tomography (CT) scan revealed an indistinct hypodense lesion (arrow) located in segment V of the liver; B: In the arterial phase, contrast enhanced CT revealed a homogeneous mass with no enhancement (arrow); C and D: A well-defined round mass (arrow), measured about 10 mm × 9 mm, was observed in the portal venous phase (C) and the mass showed iso-density in the delayed phase (D).