Focal Nodular HyperplasiaAdenoma, Liver CellHyperplasiaLiver NeoplasmsHemangiomaLiver DiseasesContrast MediaCarcinoma, HepatocellularSulfur HexafluorideKeratin-7LiverContraceptives, OralTomography, Spiral ComputedKeratin-19Image EnhancementGadolinium DTPATomography, X-Ray ComputedProstatic HyperplasiaHepatectomyAngiographyPolysaccharidesParathyroid GlandsMagnetic Resonance ImagingHyperparathyroidism, SecondaryBrunner GlandsSensitivity and Specificity