title: Hepatocellular carcinoma: percutaneous radiofrequency ablation using expandable needle electrodes and the double-insertion technique.
abstract: The authors present a case of percutaneous radiofrequency ablation for the treatment of a confirmed hepatocellular carcinoma using expandable needle electrodes and the double-insertion technique. The patient underwent radiofrequency ablation for a 5.0-cm-in-diameter hepatocellular carcinoma in liver segment VIII. One radiofrequency ablation session using the double-insertion technique was performed, resulting in the complete necrosis of the tumor. A collection of pleural effusion as a complication of radiofrequency ablation was revealed by a computed tomography scanning which was performed after the radiofrequency ablation session. However, no other serious complication was encountered. No local recurrences have been observed after a 10-month follow-up period. The present case suggests the therapeutic efficacy of radiofrequency ablation using expandable needle electrodes and the double-insertion technique.
authors.affiliation: Gastroenterological Center, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan. shirato@xd5.so-net.ne.jp
authors.forename: Kazuhito
authors.initials: K
authors.lastname: Shirato
authors.forename: Manabu
authors.initials: M
authors.lastname: Morimoto
authors.forename: Naohiko
authors.initials: N
authors.lastname: Tomita
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kokawa
authors.forename: Kazuya
authors.initials: K
authors.lastname: Sugimori
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Saito
authors.forename: Katsuaki
authors.initials: K
authors.lastname: Tanaka
mesh_terms: D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging / Q000601:surgery*; D017115:Catheter Ablation / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D010996:Pleural Effusion / Q000000981:diagnostic imaging; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed