[Focal changes in the lungs of wild hares caused by the parasite Protostrongylus commutatus (Diesing, 1851)].
The pathomorphological changes in the lungs of hare (Lepus europaeus Pallas, 1778) provoked by the parasite P. commutatus (Diesing, 1851) are macroscopically manifested as layer and nodular changes. With regard to the fact that the layer changes are suggesting the hatching nodules of protostronglyoses of small domestic ruminants, we have decided to rate them separately because of the differentiation. The layer changes on the surface of hare's lungs become evident as areas of emphysema, inflammation and induration. The emphysematous changes are macroscopically evident in the form of lobular formation (Fig. 1). Histologically, it was found out that the emphysematous effect was limited by an area of compressed lungs structures without perspicuous signs of the development of atelectatic changes (Fig. 2). The emphysematous changes are causing prominent exudative inflammatory processes in the bronchi and bronchioli provoked by unfertilized and disintegrating eggs of parasites. Inflammatory layers are macroscopically evident as solid brown-reddish areas (Fig. 3). Their macroscopic manifestation is transient. It is qualified by the stages of the inflammation itself. It is possible to put down the stage of manifestative development of the changes in the inflammatory areas only by continual examinations of hare's lungs all year round. Unfertilized eggs and grounded, disintegrating larvae of protostrongylus are provoking the inflammatory reactions which may lead in the layer changes to the obliteration of bronchioli (Fig. 6), which is macroscopically evident as induration (Fig. 7). The bronchioli are obliterated so that the phagocytic ability of monocytes is transformed to a reparative ability.(ABSTRACT TRUNCATED AT 250 WORDS)
Pajerský
A
A
Helmintologický ústav SAV, Kosice.
Svarc
R
R
Medved'ová
M
M
D000818:Animals; D007793:Lagomorpha / Q000469:parasitology*; D008168:Lung / Q000473:pathology*; D008174:Lung Diseases, Parasitic / Q000473:pathology / Q000662:veterinary*; D009349:Nematode Infections / Q000473:pathology / Q000662:veterinary*
Loziskové zmeny v pl'úcach zajaca pol'ného vyvolané parazitom Protostrongylus commutatus (Diesing, 1851).