Charles Louis Davis and Samuel Wesley Thompson DVM Foundation

For the Advancement of Veterinary and Comparative Pathology

info@cldavis.org | Phone: 847-367-4359 | Fax: 847-247-1869

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Image: F30189

Pathology Image
  • SPECIES:
    • BOVINE
  • SYSTEM:
    • ABDOMINAL CAVITY
  • ORGAN:
    • PERITONEUM
  • DIAGNOSIS:
    • CYSTICERCUS TENUICOLLIS
  • CAUSE:
    • CYSTICERCUS TENUICOLLIS
  • CONTRIBUTOR:
    • RICARDO MENDES
  • INSTITUTION:
    • INSTITUTO FEDERAL CATARINENSE - IFC
  • GENPATH:
    • HELMINTH
  • COMMENTS:
    • The mature metacestode (Cysticercus tenuicolis) is about 5-7 cm in diameter and contains a single invaginated scolex (bladderworm) with a long neck. They are nonpathogenic, and excite virtually no tissue response beyond their bland fibrous capsule. Final host: dog, fox, weasel, stoat, cattle, deer, pig, and horse. Intermediate host: sheep, goat, cattle, deer, pig, and horse. Geographical distribution: worldwide. Pathogenesis: metacestodes stages are frequently found attached in to the omentum, intestinal mesentery and the serosal surface of abdominal organs, especially liver. According with Taylor et al., the correct nomenclature for the intermediate host stage is ‘metacestode stage of Taenia hydatigena’ rather than ‘Cysticercus tenuicollis’. References: Pathology of Domestic Animals (Jubb et al.) and Veterinary Parasitology (Taylor et al.)