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. 2016 Mar 8;5(1):56–63. doi: 10.1016/j.ijppaw.2016.03.001

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© 2016 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 3 — Photomicrographs of liver sections. Sections in A, C, and E are stained with hematoxylin and eosin (H&E) and sections in B, D, and F are stained with periodic acid-Schiff (PAS). (A) Section from Arvicola amphibius with multiple fluid filled parasite vesicles outlined by an eosinophilic wall (black arrow) containing large numbers of protoscoleces (arrow head). (B) Section from Arvicola amphibius with fluid filled parasite vesicles outlined by PAS-positive laminar layer (arrows). Protoscoleces are organized in places into brood capsules (lining wall indicated by arrow heads). (C) Fluid-filled parasite vesicle with protoscoleces (arrow heads) in a Microtus agrestis. (D) Fluid filled parasite vesicle outlined by a PAS-positive laminar layer (arrows) in a Microtus agrestis. Protoscoleces are seen within the vesicle. (E) Protoscolex with rostrellar hooks (arrow). (F) Numerous empty variably sized parasite vesicles outlined by a PAS-positive laminar layer (arrows), multifocally surrounded by dense inflammatory infiltrates (asteriks). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)