Fig. 7

Histopathological analysis of nematode, trematode, cestode, arthropod, pentastomid and acanthocephalan specimens collected from different animal species. a Platynosomum illiciens is covered by a tegument, lacks a pseudocoelom and presents a uterus filled with ova (black arrow). H&E 40×. Inset: detail of the ventral and oral suckers from the same parasite. b Spirometra mansoni (cestode), the parasite is covered by a tegument, lacks a pseudocoelom and presents a segmented body. H&E 40×. Inset: detail of the calcareous corpuscles (black arrows) from the same parasite. c Oncicola sp. (acanthocephala), the parasite has a cuticle, a thick hypodermis, a pseudocoelom and a spined proboscis (black arrow). H&E 40×. d Mite of the family Epidermoptidae (arthropod), the mite has a chitinized body wall with striated muscles (black arrow) and jointed appendages (red arrow). H&E 100×. e Porocephalus crotali (pentastome), the parasite presents a pseudosegmented body with an intestine surrounded by acidophilic glands and sclerotized openings in the cuticle. H&E 40×. Inset: detail of the acidophilic glands (red arrow) and the sclerotized openings in the cuticle (black arrow) from the same parasite. f Spirocerca lupi (nematode), the parasite presents a cuticle, a pseudocoelom, coelomyarian musculature and lateral cords (black arrow). H&E 40×. Inset: detail of the coelomyarian musculature and a uterus with ova from another section of another parasite of the same genus and species