Abstract
Our personal series of 20 cases of focal nodular hyperplasia (FNH) of the liver is presented. All lesions were studied with computed tomography (CT), 16 of which with surgical control. Retrospective evaluation of the CT features of the identified FNH, along with those of five hepatocellular adenomas (HCA) and 30 hepatocellular carcinomas (HCC), allowed the definition of specific patterns leading to a correct characterization of FNH in 78% of cases. This greatly reduced the diagnostic errors, with the sole exception of patients with fatty liver in whom nuclear medicine may eventually provide a correct characterization. Fine-needle biopsy is thus only necessary in the dubious cases. A precise diagnostic workup of FNH is necessary, since it may avoid the surgical intervention.
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