title: [Contrast-enhanced ultrasound in hepatic focal nodular hyperplasia].
abstract: The ultrasound contrast agent is composed by microbubbles of sulfur hexafluoride. It is now recognized to the characterization of liver lesions. Focal nodular hyperplasia (FNH) is a benign lesion of the liver. It is found in the majority of cases among women with a sex ratio 1M/8F, no typical clinical presentation or malignancy is described. When the liver lesion was found in B-mode ultrasound, injection of contrast can be realized immediately by the radiologist. The study of the lesion during the arterial, portal and late phases with the contrast-enhanced ultrasound allows the diagnosis of FNH with a specificity of 97%. In arterial phase, the prescence of a central artery and scarring, centrifugal progression of enhancement, a transient unenhanced zone and in portal and late phases, isoechogenicity compared to adjacent parenchyma are the main features of FNH described in the literature.
authors.affiliation: Service d'imagerie Médicale, CHR Citadelle, Liège.
authors.forename: Y
authors.initials: Y
authors.lastname: Gorur
authors.forename: C
authors.initials: C
authors.lastname: Coibion
authors.forename: P
authors.initials: P
authors.lastname: Magotteaux
mesh_terms: D000465:Algorithms; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D020518:Focal Nodular Hyperplasia / Q000000981:diagnostic imaging*; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008099:Liver / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D013459:Sulfur Hexafluoride; D018615:Ultrasonography, Doppler, Color / Q000379:methods*
chemical_list: D003287:Contrast Media; D013459:Sulfur Hexafluoride