AJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Ruppert-Kohlmayr, A. J.
Right arrow Articles by Ruppert, G. S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Ruppert-Kohlmayr, A. J.
Right arrow Articles by Ruppert, G. S.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

Focal Nodular Hyperplasia and Hepatocellular Adenoma of the Liver

Differentiation with Multiphasic Helical CT

Andrea J. Ruppert-Kohlmayr1, Martin M. Uggowitzer1, Christian Kugler1, Doris Zebedin1, Gottfried Schaffler1 and Georg S. Ruppert2

1 Department of Radiology, University Hospital of Graz, Auenbruggerplatz 9, A-8036 Graz, Austria.
2 Doors to Knowledge, Alte Reichsstr. 9, A-8410 Wildon, Austria.



View larger version (90K):

[in a new window]
  		Fig. 1A. —29-year-old woman with instantly detected liver lesion. Triphasic helical CT scan reveals focal nodular hyperplasia with central scar (curved arrow, left) in right liver lobe that is slightly hypodense in unenhanced phase (left); hyperdense in arterial phase (middle), with visible feeding vessel in central scar (straight arrow, middle); and slightly hyperdense in portal venous phase (right).

 


View larger version (103K):

[in a new window]
  		Fig. 1B. —29-year-old woman with instantly detected liver lesion. Arterial phase CT scan shows feeding artery (arrow) on base of same lesion as that shown in A as originating from hepatic artery.

 


View larger version (110K):

[in a new window]
  		Fig. 2. —36-year-old woman with focal nodular hyperplasia in right liver lobe (straight arrow). Helical CT scan obtained during unenhanced (left), arterial (middle), and portal venous (right) phases shows central scar (curved arrow, middle and right) with central feeding artery.

 


View larger version (142K):

[in a new window]
  		Fig. 3A. —44-year-old woman with hepatocellular adenoma (straight arrow) in right liver lobe (subcapsular). Arterial phase CT scan shows lesion is slightly hyperdense and shows feeding artery (curved arrow) originates from branch of hepatic artery.

 


View larger version (164K):

[in a new window]
  		Fig. 3B. —44-year-old woman with hepatocellular adenoma (straight arrow) in right liver lobe (subcapsular). Helical CT scan shows feeding artery going to capsule of benign tumor supplying subcapsular arteries (curved arrow).

 


View larger version (16K):

[in a new window]
  		Fig. 4. —Graph shows time-attenuation curves for focal nodular hyperplasia (left), hepatocellular adenoma (middle), and liver parenchyma (right) during unenhanced phase (u), arterial phase (a), and portal venous phase (p) triphasic helical CT.

 


View larger version (14K):

[in a new window]
  		Fig. 5. —Graph shows relative enhancement in arterial phase of hepatocellular adenoma (left) and focal nodular hyperplasia (right). Threshold of 1.6 shows highly accurate differentiation of these lesions.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2001 by the American Roentgen Ray Society.