title: Focal nodular hyperplasia: imaging findings.
abstract: Focal nodular hyperplasia is an uncommon benign hepatic tumor that continues to pose diagnostic dilemmas. Imaging techniques are of great value in diagnosis of this tumor. In this article we present the US, CT, MR imaging, scintigraphy, and angiography findings. The demonstration of a central vascular scar is very helpful. Although the radiologic features may be diagnostic, many atypical cases must be differentiated from other benign or malignant hepatic tumors. In these cases excisional biopsy and histopathologic examination are necessary to determine a definite diagnosis.
authors.affiliation: Department of Radiology, University of Athens, Areteion Hospital, Greece.
authors.forename: D
authors.initials: D
authors.lastname: Kehagias
authors.forename: L
authors.initials: L
authors.lastname: Moulopoulos
authors.forename: A
authors.initials: A
authors.lastname: Antoniou
authors.forename: A
authors.initials: A
authors.lastname: Hatziioannou
authors.forename: V
authors.initials: V
authors.lastname: Smyrniotis
authors.forename: S
authors.initials: S
authors.lastname: Trakadas
authors.forename: S
authors.initials: S
authors.lastname: Lahanis
authors.forename: L
authors.initials: L
authors.lastname: Vlahos
mesh_terms: D000792:Angiography; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging / Q000379:methods*; D020518:Focal Nodular Hyperplasia / Q000175:diagnosis*; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D011877:Radionuclide Imaging; D014057:Tomography, X-Ray Computed; D018608:Ultrasonography, Doppler