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. 2019 Aug 27;19:748. doi: 10.1186/s12879-019-4396-2

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© The Author(s). 2019

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Cranial postcontrast MRI obtained at the onset of headache revealed an irregular enhancement lesion with perifocal edema in the right frontal lobe (a) and tunnel sign involving the bilateral brain (b). Postcontrast MRI performed after the second two-day praziquantel treatment, the irregular enhancement lesion was obviously reduced (c) and tunnel sign was almost invisible (d)