Background: Heterakidosis is one of the most prevalent parasitic diseases in birds, the caecae of a variety of wild and domestic birds are infected with these nematodes. In pheasants, nodular typhlitis is a lethal disease caused mainly by infection with Heterakis isolonche alone or in conjunction with Heterakis gallinarum. has long been recognized to infect birds with low pathogenicity, with only a few fatal cases previously reported.
Case Description: This paper describes a case of fatal nodular typhlitis due to H. gallinarum in a male and female pair of adult golden pheasants (Chrysolophus pictus) from a zoological garden in Uttar Pradesh, India.
Findings/treatment And Outcome: The caecum had multiple serosal and mucosal nodules, the majority of which were found to contain various stages of parasites embedded in the center along with the free forms in the caecal contents. Histopathologically, these nodules were generally represented by granulomas centered on necrotic parasite debris, with the occasional reactive fibrous hyperplastic tissue reaction. Based on the morphology and nematode-specific internal transcribed spacer (ITS) ITS1-5.8 rRNA-ITS2 region-based PCR, the nematode was identified as H. gallinarum. The presence of H. gallinarum was further confirmed by sequencing the ITS region followed by phylogenetic analysis. According to the author's best knowledge, this is the first instance of H. gallinarum being linked to nodular typhlitis in pheasants in India.
Conclusion: Our findings confirm that H. gallinarum H. isolonche can induce severe nodular typhlitis with a fatal outcome in pheasants.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11127738 | PMC |
| http://dx.doi.org/10.22099/IJVR.2023.48517.7085 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The first record of as a cause of fatal nodular typhlitis in golden pheasants () in India.
Iran J Vet Res
January 2023
Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India.
Background: Heterakidosis is one of the most prevalent parasitic diseases in birds, the caecae of a variety of wild and domestic birds are infected with these nematodes. In pheasants, nodular typhlitis is a lethal disease caused mainly by infection with Heterakis isolonche alone or in conjunction with Heterakis gallinarum. has long been recognized to infect birds with low pathogenicity, with only a few fatal cases previously reported.
View Article and Find Full Text PDFInfection Associated with Severe Nodular Typhlitis and Suspect Aberrant Pulmonary Migration in a Golden Pheasant ().
Avian Dis
June 2022
Poultry Research and Diagnostic Laboratory, College of Veterinary Medicine, Mississippi State University, Pearl, MS 39208,
This case report describes the clinical, parasitologic, pathologic, and histologic characteristics of a golden pheasant () with an infection of in Mississippi. An approximately 2-yr-old golden pheasant from a flock of 8 to 10 birds was submitted to the Poultry Research and Diagnostic Laboratory in Pearl, MS, for necropsy. Clinical history indicated that three flock mates had died of unknown causes in the past.
View Article and Find Full Text PDFNodular typhlocolitis, heterakiasis, and mesenchymal neoplasia in a ring-necked pheasant ( Phasianus colchicus) with immunohistochemical characterization of visceral metastases.
J Vet Diagn Invest
July 2017
Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH.
A 9-y-old, male ring-necked pheasant ( Phasianus colchicus) was autopsied following euthanasia because of acute distress, recumbency, and dyspnea. The bird had experienced a protracted period of neuromuscular disease localized to the left sciatic nerve. Gross and histologic examination of the large intestine revealed intramural nodules predominantly comprised of atypical, whorling spindle cells with small cores of granulomatous inflammation centered on cross-sections of immature adult nematodes.
View Article and Find Full Text PDFAbdominal aspergillosis: CT findings.
Eur J Radiol
March 2011
Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Poongnap2-dong, Songpa-gu, Seoul 138-736, Republic of Korea.
Objective: In order to retrospectively evaluate the CT findings of abdominal aspergillosis in immunocompromised patients.
Materials And Methods: CT scans were reviewed with regard to the sites, number, morphologic appearance, attenuation, and the contrast enhancement patterns of the lesions in six patients (5 women, 1 man; mean age, 43.4 years; range, 23-59 years) with pathologically proved abdominal aspergillosis by two gastrointestinal radiologists in consensus.
Nodular typhlitis associated with the nematodes Heterakis gallinarum and Heterakis isolonche in pheasants: frequency and pathology with evidence of neoplasia.
Mem Inst Oswaldo Cruz
December 2003
Laboratório de Helmintos Parasitos de Vertebrados, Departamento de Helmintologia, Instituto Oswaldo Cruz-Fiocruz, Av. Brasil 43561, 21045-900 Rio de Janeiro, RJ, Brasil.
An investigation related to the frequency and pathology of Heterakis gallinarum and pathology of Heterakis isolonche in pheasants from Rio de Janeiro, Brazil was conducted by means of clinical examinations, necropsies, and histopathological analysis in 50 ring-necked pheasants from backyard flocks of 11 localities; also, histological sections of caeca of golden pheasants deposited in the Helminthological Collection of the Oswaldo Cruz Institute (CHIOC) have been considered in the present study. During necropsies, only specimens of H. gallinarum were recovered with a prevalence of 90%, mean intensity of 81.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!