Radiology, Vol 156, 593-595, Copyright © 1985 by Radiological Society of North America

ARTICLES

Focal nodular hyperplasia and hepatic adenoma: comparison of angiography, CT, US, and scintigraphy

TJ Welch, PF Sheedy 2d, CM Johnson, DH Stephens, JW Charboneau, ML Brown, GR May, MA Adson and DB McGill

The authors reviewed 23 cases of focal nodular hyperplasia and 13 cases of hepatic adenoma, all of which were confirmed pathologically. All solitary masses that exhibited normal or increased uptake of technetium 99m-sulfur colloid were shown to be hyperplasia; while previous criteria such as a central blood supply on angiograms or a central scar on computed tomography (CT) or ultrasound (US) scans were helpful, they were relatively infrequent. A mass that was slightly hypodense and homogeneous on a CT or US scan and highly vascular with an intense capillary stain on an angiogram was almost always hyperplasia. Acute hemorrhage within a focal hepatic tumor was common in adenoma but did not occur in hyperplasia.

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