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Updated: Jun 26, 2026
Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
Published on: May 23, 2015
Two cases of needle-tract seeding after percutaneous radiofrequency ablation for lung cancer
Takao Hiraki1, Hidefumi Mimura, Hideo Gobara
1Department of Radiology, Okayama University Medical School, Okayama, Japan. takaoh@tc4.so-net.ne.jp
Abstract:
The authors describe two cases of needle-tract seeding after percutaneous radiofrequency (RF) ablation for lung cancer. Needle biopsy was performed immediately before RF ablation in one case. In both cases, RF ablation was performed with a single internally cooled electrode, which was removed without cauterizing the electrode tract. The seeding nodule appeared 4 or 7 months after RF ablation and was then completely treated with a repeat RF ablation.
