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. 2022 Jan 18;14(3):481. doi: 10.3390/cancers14030481

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© 2022 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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A 2.2 cm solitary HCC in segment IV with complete response after RFA. (a) Arterial phase CEUS (8 s after SonoVue injection) shows an avascular pattern with peripheral rim enhancement. (b) Late-phase CEUS (141 s after SonoVue injection) confirms an avascular pattern with persistent peripheral rim enhancement, suggesting reactive hyperemia. (c) Arterial phase CECT 1 month after RFA confirms complete necrosis.