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. 2023 Sep 26;13(19):3059. doi: 10.3390/diagnostics13193059

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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RFA is possible and effective even in T1b lesions. (a) shows a right lower pole exophytic clear cell RCC (arrow—coronal plane) measuring 52 × 44 mm. A 4-tined expandable electrode (arrowheads) is positioned into the upper-front part of the mass ((b) sagittal plane). Then, two other positionings are made by receding the probe (arrowhead) backward ((c) axial plane and (d) sagittal plane)) and repositioning the needle (arrowhead) in the lower portion of the mass ((e) sagittal plane). One month after ablation, the mass shows no enhancement (arrow), meaning tumor necrosis is achieved ((f)—axial plane).