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Fig. 4 | BMC Veterinary Research

Fig. 4

From: Molecular identification, phylogenetic analysis and histopathological study of pathogenic free-living amoebae isolated from discus fish (Symphysodon aequifasciatus) in Iran: 2020–2022

Fig. 4

Histopathological findings of gills. (a) Inflammatory cells infiltration (arrowhead) and presence of numerus cysts of Acanthamoeba sp. (arrows) inside the hyperplastic epithelial tissue of gills. (b) Higher magnification shows cysts with double-layered walls and central nucleus (arrows). Inflammatory cells infiltration (arrowhead). (c) Gill filament characterized by spongiosis (SP) of hyperplastic (H) epithelium. Cysts of Acanthamoeba sp. (arrowheads) (H&E). (d) The Masson’s trichrome staining highlights the cysts of Acanthamoeba sp. (arrowheads)

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BMC Veterinary Research

ISSN: 1746-6148

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