This study describes Crenosoma brasiliense (Nematoda, Metastrongyloidea), a new species parasitic in bronchi and bronchioles of Galictis cuja (Molina) (Carnivora, Mustelidae) from Brazil. This species differs from other 11 species of Crenosoma by having a cuticular projection at the distal end of the spicules, forming a prominent blade at the tip of the spicule, a vulval cuticular appendage with a triangular shape and prominent vulval lips. There are no previous records of species of Metastrongyloidea in G. cuja or species of Crenosoma in South America. Therefore, the new species represents the first host record and first geographical record of species of Crenosoma in South America.

• MeSH
• bronchy parazitologie   MeSH
• cestodózy epidemiologie   parazitologie   veterinární   MeSH
• druhová specificita MeSH
• Metastrongyloidea anatomie a histologie   klasifikace   izolace a purifikace   MeSH
• Mustelidae parazitologie   MeSH
• plicní nemoci parazitologie   veterinární   MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Brazílie MeSH

The specification of pathomorphological changes occurring during Varestrongylus capreoli ontogenesis was studied on the basis of different forms of inflammation. The character, course and extent of inflammatory reactions were contingent on the maturity, localization and number of worms. The allergic inflammation accompanying the development of juvenile specimens inside the alveoli was followed by the regeneration of lung tissues providing suitable conditions for further development of the parasite. A prolonged edema occurring during the differentiation of juvenile parasites localized in the bronchioles caused a disposition of the roughen bronchial wall to its miliary necrotic disintegration producing a negative effect on further development of the helminth. The pathomorphological effect of mature productive parasites was characterized by focal changes hatching nodes. Activated epithelial cells of alveoli, phagocytizing disintegrating eggs and not developing 1st-stage larvae together with eosinophilic granulocytes participated in the restoration of the host lung functional ability while tolerating the presence of the parasite. A difficult excretion of sex products from the lungs stimulated the development of proliferative forms of inflammation reducing the number of Varestrongylus specimens.

• MeSH
• bronchy imunologie   parazitologie   patologie   MeSH
• hlístice imunologie   fyziologie   MeSH
• nematodózy imunologie   parazitologie   patologie   veterinární   MeSH
• parazitární onemocnění plic imunologie   parazitologie   patologie   veterinární   MeSH
• plicní alveoly imunologie   parazitologie   patologie   MeSH
• vysoká zvěř parazitologie   MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH