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. 2022 Jul 28;12:941752. doi: 10.3389/fonc.2022.941752

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Copyright © 2022 Chen, Yan, Lin, Chen, Chen and Lin

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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CT-guided MWA for rabbit lung VX2 tumor with MR and pathological findings. CT showed a VX2 tumor located in right lower lobe with 13 mm in diameter and invasion of adjacent pleura (A, arrow). The pre-ablation MR scan of the tumor showed hyperintensity on T2WI and isointense zone on T1WI before MWA (B, C, arrow). MW antenna was gradually punctured into the tumor under CT guidance (D). GGO surrounding the lesion was displayed immediately after MWA on CT (E). Immediately after MWA, MR showed short T1 and short T2 signals in the central area with patchy iso-T1 and long T2 signals in the periphery including adjacent pleura and chest wall (F, G). Pathology showed coagulative necrosis of the ablation area including invasion of adjacent pleura, with peripheral hemorrhage and inflammatory reaction zone (H, I arrow). MWA, microwave ablation; T2WI, T2-weighted image; T1WI, T1-weighted image; GGO, ground-glass opacity. .