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Journal of Veterinary Research
Volume 63 (2019): Issue 4 (December 2019)
Open Access
First description of histopathological lesions associated with a fatal infection of moose (
Alces alces
) with the liver fluke
Parafasciolopsis fasciolaemorpha
Ejsmont, 1932
Katarzyna Filip-Hutsch
Katarzyna Filip-Hutsch
,
Tomasz Hutsch
Tomasz Hutsch
,
Szymon Kolasa
Szymon Kolasa
and
Aleksander W. Demiaszkiewicz
Aleksander W. Demiaszkiewicz
| Nov 16, 2019
Journal of Veterinary Research
Volume 63 (2019): Issue 4 (December 2019)
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Published Online:
Nov 16, 2019
Page range:
549 - 554
Received:
Mar 28, 2019
Accepted:
Oct 30, 2019
DOI:
https://doi.org/10.2478/jvetres-2019-0068
Keywords
moose
,
histopathology
,
liver fibrosis
© 2019 K. Filip-Hutsch et al. published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fig. 1
Parafasciolopsis fasciolaemorpha flukes isolated from a moose liver
Fig. 2
Histopathological picture of cavities filled with flukes. A, D – liver flukes of Parafasciolopsis fasciolaemorpha, 10× (eyepiece) and 4× (objective); B, E – cyst capsule, 10× (eyepiece) and 4× (objective); C, F – the inner part of the cyst capsule, 10× (eyepiece) and 10× (objective); G – bile ductules in the layer of infiltration and secondary fibrosis, 10× (eyepiece) and 40× (objective); H – arteries in the layer of secondary fibrosis, 10× (eyepiece) and 40× (objective); I – cells of inflammatory infiltration, 10× (eyepiece) and 100× (objective). A, B, C, G, H, I – HE staining; D, E, F – Van Gieson staining. Black arrow – bile ductule, white arrow – artery, double arrow – connective tissue hyperplasia, * inflammatory infiltration
Fig. 3
Histopathological changes in the liver parenchyma in the infection with Parafasciolopsis fasciolaemorpha in comparison to the healthy moose liver. A, B – healthy moose liver; C, D – the parenchyma of a moose liver infected with Parafasciolopsis fasciolaemorpha; All images at 10× (eyepiece) and 10× (objective). A, B – HE staining; C, D – Van Gieson staining. Black arrow – connective tissue bands, CV – central veins, PF – portal fields
Fig. 4
Diagram of pathogenesis of P. fasciolaemorpha infection