TY - JOUR AB - Percutaneous ethanol injection therapy (PEIT) has been administered as a safe therapeutic modality for patients with small hepatocellular carcinoma (HCC). Due to the nature of the straight approaching line of a PEIT or radiofrequency ablation needle, penetrating the vessels that are interposed between the dermal insertion point and the nodule is unavoidable. A device with an overcoat needle and coaxial curved PEIT needle was created that facilitated a detour around interposing large vessels in order to avoid unnecessary harmful effects that result from the PEIT procedure. Two cases of HCC located adjacent to a neighboring large vessel were treated with a curved PEIT needle. The curved PEIT needle, which is connected to an outer needle, enabled deviation around the interposing vessels and successful connection with the HCC. Careful use of the curved line of the PEIT needle enabled the safe and successful performance of the PEIT without any requirement for specific training. This hand‑assisted technique may be an applicable treatment for small HCC located beneath large vessels as a direct therapeutic method using ultrasound guidance. AD - Department of Internal Medicine, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa 760-8557, Japan Department of Gastroenterology and Neurology, Kagawa University School of Medicine, Miki‑cho, Kida‑gun, Kagawa 761-0793, Japan Department of Integrated Medicine, Kagawa University School of Medicine, Miki‑cho, Kida‑gun, Kagawa 761-0793, Japan AU - Watanabe,Seishiro AU - Morishita,Asahiro AU - Deguchi,Akihiro AU - Nakai,Seiji AU - Sakamoto,Teppei AU - Fujita,Koji AU - Maeda,Emiko AU - Nomura,Takako AU - Tani,Joji AU - Miyoshi,Hisaaki AU - Yoneyama,Hirohito AU - Fujiwara,Shintaro AU - Kobara,Hideki AU - Mori,Hirohito AU - Himoto,Takashi AU - Masaki,Tsutomu DA - 2014/06/01 DO - 10.3892/ol.2014.2053 EP - 1834 IS - 6 JO - Oncol Lett KW - curved needle percutaneous ethanol injection therapy hepatocellular carcinoma PY - 2014 SN - 1792-1074 1792-1082 SP - 1831 ST - Ethanol injection therapy for small hepatocellular carcinomas located beneath a large vessel using a curved percutaneous ethanol injection therapy needle T2 - Oncology Letters TI - Ethanol injection therapy for small hepatocellular carcinomas located beneath a large vessel using a curved percutaneous ethanol injection therapy needle UR - https://doi.org/10.3892/ol.2014.2053 VL - 7 ER -