title: Pathological changes in cattle naturally infected by Calicophoron daubneyi adult flukes.
abstract: Local host response and parasite distribution were studied in the forestomachs, abomasum, duodenum and regional lymph nodes of cattle suffering from bovine paramphistomosis. The parasites were found attached, by its ventral sucker, to small conical papillae of the rumen and reticulum. Affected papillae, showed morphological changes denoted by very narrow stalks and expanded heads. Histologically, these changes were characterized by epithelial acanthosis-hyperkeratosis of the epithelium. Infiltration of inflammatory cells was often related with the epithelial changes, although it was also found in the duodenal mucosa and submucosa. These cells were arranged as aggregates or follicles but sparse infiltration of eosinophils, globule leukocytes, mast cells or macrophages was also observed in the lamina propria. Tissue damage and inflammatory reaction were more severe in the ruminal atrium, where the largest number of flukes and affected papillae were observed. In contrast, lesions in the ruminal dorsal sac were absent or mild. Statistical correlation between lesion severity and parasite burden was confirmed.
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.
authors: Miguel
authors: M
authors: Fuertes
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.
authors: Valentín
authors: V
authors: Pérez
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.
authors: Julio
authors: J
authors: Benavides
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.
authors: M Camino
authors: MC
authors: González-Lanza
authors: Centro de Investigaciones Agrarias de Mabegondo-INGACAL, Xunta de Galicia, Carretera Betanzos-Mesón do Vento, km 7, 15318 Abegondo, A Coruña, Spain.
authors: Mercedes
authors: M
authors: Mezo
authors: Centro de Investigaciones Agrarias de Mabegondo-INGACAL, Xunta de Galicia, Carretera Betanzos-Mesón do Vento, km 7, 15318 Abegondo, A Coruña, Spain.
authors: Marta
authors: M
authors: González-Warleta
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.
authors: Francisco Javier
authors: FJ
authors: Giráldez
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.
authors: Miguel
authors: M
authors: Fernández
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.
authors: M Yolanda
authors: MY
authors: Manga-González
authors: Instituto de Ganadería de Montaña CSIC-ULE, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain. Electronic address: mcfere@unileon.es.
authors: M Carmen
authors: MC
authors: Ferreras
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology* / Q000473:pathology; D013272:Stomach Diseases / Q000469:parasitology / Q000473:pathology / Q000662:veterinary; D014200:Trematoda / Q000145:classification*; D014201:Trematode Infections / Q000469:parasitology / Q000473:pathology / Q000662:veterinary*
keywords: Calicophoron daubneyi; Cattle; Paramphistomosis; Pathology