Combined Percutaneous Radiofrequency Ablation and Ethanol Injection for Hepatocellular Carcinoma in High-Risk Locations
Stephen N. Wong1,2,
Chun-Jung Lin1,
Chen-Chun Lin1,
Wei-Ting Chen1,
Ian Homer Y. Cua1 and
Shi-Ming Lin1
1 Liver Research Unit, Department of Hepatogastroenterology, Chang Gung Memorial
Hospital and Chang Gung University, 199, Tunghwa Rd., Taipei, Taiwan.
2 Section of Gastroenterology, University of Santo Tomas Hospital, Manila,
Philippines.

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Fig. 2 —Distribution of high-risk tumors. * = 44 tumors were located
near both vessel/s and vital structure. PV = portal vein, HV = hepatic vein,
IVC = inferior vena cava, GB = gallbladder, GIT = gastrointestinal tract.
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Fig. 4A —45-year-old man with hepatitis B virus–related
cirrhosis and hepatocellular carcinoma. Indistinct tumor border is independent
predictor of local tumor progression. Arterial phase CT scan before
radiofrequency ablation shows enhancement of solitary tumor (arrows)
at segment VII.
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Fig. 4B —45-year-old man with hepatitis B virus–related
cirrhosis and hepatocellular carcinoma. Indistinct tumor border is independent
predictor of local tumor progression. Portal phase CT scan before
radiofrequency ablation shows contrast washout (arrows) at segment
VII.
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Fig. 4C —45-year-old man with hepatitis B virus–related
cirrhosis and hepatocellular carcinoma. Indistinct tumor border is independent
predictor of local tumor progression. Sonographic image shows indistinct tumor
borders (arrows), as in A and B.
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Fig. 4D —45-year-old man with hepatitis B virus–related
cirrhosis and hepatocellular carcinoma. Indistinct tumor border is independent
predictor of local tumor progression. Dynamic CT scan 1 day after
radiofrequency ablation shows complete ablation of area of index tumor with
peripheral enhancement due to postablation hyperemia.
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Fig. 4E —45-year-old man with hepatitis B virus–related
cirrhosis and hepatocellular carcinoma. Indistinct tumor border is independent
predictor of local tumor progression. Repeated CT scans 2 months after
D show local tumor progression at posterior border of ablation zone
with enhancement (arrowhead) in arterial (E) and washout in
portal (F) phases.
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Fig. 4F —45-year-old man with hepatitis B virus–related
cirrhosis and hepatocellular carcinoma. Indistinct tumor border is independent
predictor of local tumor progression. Repeated CT scans 2 months after
D show local tumor progression at posterior border of ablation zone
with enhancement (arrowhead) in arterial (E) and washout in
portal (F) phases.
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Copyright © 2008 by the American Roentgen Ray Society.