CO2-enhanced sonographically guided radiofrequency ablation and transcatheter arterial chemoembolization for small hepatocellular carcinoma poorly defined on conventional sonography.
We report a case of hepatocellular carcinoma located just below the right hemidiaphragm that was diagnosed as having hepatitis C virus-related cirrhosis 12 years ago. Although the lesion was not clear on conventional sonography, it was clearly defined on CO(2)-enhanced sonography, allowing safe and accurate radiofrequency ablation. By combining radiofrequency ablation with transcatheter arterial chemoembolization, extensive cauterization and complete tumor necrosis were obtained with only 1 session of treatment. The patient had no serious adverse effects and has shown no recurrence during 35 months of follow-up.
Ohmoto
Kenji
K
Division of Hepatology, Department of Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
Yoshioka
Naoko
N
Tomiyama
Yasuyuki
Y
Shibata
Norikuni
N
Kawase
Tomoya
T
Yoshida
Koji
K
Kuboki
Makoto
M
Yamamoto
Shinichiro
S
D000369:Aged, 80 and over; D002245:Carbon Dioxide; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000628:therapy*; D017115:Catheter Ablation; D016461:Chemoembolization, Therapeutic / Q000379:methods*; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000628:therapy*; D008297:Male; D018084:Ultrasonography, Interventional
D002245:Carbon Dioxide