Histopathology of lesions caused by Pseudocorynosoma constrictum (Acanthocephala: Polymorphidae) in the ileum of blue-winged teal
| Autor: | Petra Sánchez-Nava, Carmen Caballero-Viñas |
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| Rok vydání: | 2020 |
| Předmět: |
0303 health sciences
medicine.medical_specialty Necrosis biology 030231 tropical medicine Proboscis Ileum General Medicine Anatomy biology.organism_classification 030308 mycology & parasitology Polymorphidae Muscular layer 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure medicine Parasite hosting Animal Science and Zoology Parasitology Histopathology medicine.symptom Acanthocephala |
| Zdroj: | Journal of Helminthology. 94 |
| ISSN: | 1475-2697 0022-149X |
| Popis: | Pseudocorynosoma constrictum (Van Cleave, 1918) is a polymorphid acanthocephalan that attaches to the digestive tract of waterfowl to complete its life cycle, causing severe histological damage to its definitive avian hosts. In the present study, we present a histopathological analysis of the lesions that P. constrictum induced in the layers of the ileum of the blue-winged teal Anas discors. The results revealed that worms insert the attachment structures into the inner gut muscular layer, which causes substantial swelling, haemorrhaging and necrosis in the tissue near the parasite's proboscis. We also observed that the number of parasites attached to the tissue can obstruct the intestinal lumen; in the most serious case, we observed more than 30 parasites penetrating completely the walls of the bird intestine. |
| Databáze: | OpenAIRE |
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