Fig. 5
Photomicrographs showing histopathological changes in the lungs of a reindeer infected with Elaphostrongylus rangiferi. a Heavily infected area with multiple transverse as well as longitudinal larvae (black arrows) and eggs (blue arrow). Mononuclear cells and giant cells (grey arrow) surround the parasites. b An area less infected. A coiled larva (black arrow) as well as several eggs (blue arrows) are seen. Mononuclear cells are present in the interstitium. a, b Obj. 10×, haematoxylin and eosin