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 Choi, D.
Right arrow Articles by Kim, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Choi, D.
Right arrow Articles by Kim, 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?
Hotlight (NEW!)
Right arrow
What's Hotlight?

Liver Abscess After Percutaneous Radiofrequency Ablation for Hepatocellular Carcinomas: Frequency and Risk Factors

Dongil Choi1, Hyo K. Lim1, Min Ju Kim1, Suk Jung Kim1, Seung Hoon Kim1, Won Jae Lee1, Jae Hoon Lim1, Seung Woon Paik2, Byung Chul Yoo2, Moon Seok Choi2 and Seonwoo Kim3

1 Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Kangnam-ku, Seoul 135-710, South Korea.
2 Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, South Korea.
3 Biostatistics Unit, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, South Korea.



View larger version (137K):

[in a new window]
  		Fig. 1A. —75-year-old man with percutaneous radiofrequency ablation of recurrent hepatocellular carcinoma. He had undergone hepaticojejunostomy due to biliary stricture after left hepatectomy for hepatocellular carcinoma. Contrast-enhanced transverse CT scan obtained during arterial phase shows 3.0-cm-diameter hepatocellular carcinoma (arrows) in subcapsular portion of liver segment VI.

 


View larger version (142K):

[in a new window]
  		Fig. 1B. —75-year-old man with percutaneous radiofrequency ablation of recurrent hepatocellular carcinoma. He had undergone hepaticojejunostomy due to biliary stricture after left hepatectomy for hepatocellular carcinoma. Oblique sonogram obtained 3 days after radiofrequency ablation shows massive hyperechogenicity (arrows) representing air in ablation zone. Patient presented to emergency department with high fever (40°C) and abdominal pain.

 


View larger version (126K):

[in a new window]
  		Fig. 1C. —75-year-old man with percutaneous radiofrequency ablation of recurrent hepatocellular carcinoma. He had undergone hepaticojejunostomy due to biliary stricture after left hepatectomy for hepatocellular carcinoma. Contrast-enhanced CT scan obtained immediately after sonographic examination shows low-attenuating ablation zone (arrows) containing substantial amount of air (arrowheads), which indicates liver abscess. Cultures with blood were positive for Enterococcus species, which are enteric bacteria. Sepsis developed in this patient, but he recovered with parenteral antibiotics.

 


View larger version (117K):

[in a new window]
  		Fig. 2A. —61-year-old man with percutaneous radiofrequency ablation of residual hepatocellular carcinoma. He had undergone transcatheter arterial chemoembolization for hepatocellular carcinoma. Contrast-enhanced transverse CT scan, obtained during arterial phase, shows 1.8-cm-diameter residual hepatocellular carcinoma (arrows) in anterior aspect of area of iodized oil retention (arrowheads) in liver segment V.

 


View larger version (116K):

[in a new window]
  		Fig. 2B. —61-year-old man with percutaneous radiofrequency ablation of residual hepatocellular carcinoma. He had undergone transcatheter arterial chemoembolization for hepatocellular carcinoma. Contrast-enhanced CT scan obtained during arterial phase, 30 days after radiofrequency ablation, shows low-attenuating ablation zone (arrows) with layering enhancing rim (inner enhancing ring and peripheral hypodense ring) (arrowheads). It also contains air bubbles. Patient presented to internal medicine department with low-grade (38°C) fever on scheduled day for follow-up.

 


View larger version (129K):

[in a new window]
  		Fig. 2C. —61-year-old man with percutaneous radiofrequency ablation of residual hepatocellular carcinoma. He had undergone transcatheter arterial chemoembolization for hepatocellular carcinoma. Contrast-enhanced CT scan obtained during equilibrium phase, 30 days after radiofrequency ablation, shows low-attenuating ablation zone with relatively thick, ringlike enhancement of inner and peripheral zones (arrowheads). This changing target appearance of rim (double ring at arterial phase and single ring at equilibrium phase) is characteristic finding of liver abscess.

 


View larger version (133K):

[in a new window]
  		Fig. 2D. —61-year-old man with percutaneous radiofrequency ablation of residual hepatocellular carcinoma. He had undergone transcatheter arterial chemoembolization for hepatocellular carcinoma. Contrast-enhanced CT scan obtained 5 months after treatment with IV antibiotics shows abscess has completely resolved, and ablation zone (arrows) shows marked decrease in size.

 

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 © 2005 by the American Roentgen Ray Society.