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. 2021 Feb 10;21:168. doi: 10.1186/s12879-021-05859-5

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 2 — Patient No. 14. a Gross view of the resected right lobe of the liver shows heterogeneous solid mass lesion that contains externally budding vesicles and calcified foci with a maximum diameter of a single vesicle around 10 mm. b, c, d Histopathological characteristics of Echinococcus multilocularis lesion in the liver. Normal appearance of the liver is distorted. Severe inflammation is present around the necrotic liver tissue (asterisk in b). This inflammatory infiltrate consists of lymphocytes and histiocytes. In some areas fragment of cuticular membrane is observed within the necrotic area (arrowheads in b). This membrane displays the laminated layer as a tender band-like structure (arrowheads in d) with a germinal layer (short arrows in c and d). Note the invaginated protoscoleces found within the vesicles (long arrows in c and d)