sheepLink to Body ContentLink to Site Map
Select Area of Interest

Choose topic:
FAQs
Epidemiology
Pathology
Diagnosis
Control
Prevention
Herd/Flock Management
Laws & Regulations
True Cases & Stories
Gallery Graphics
Line
Testing Services
General Information
Glossary
History
Biology of Ml. Paratuberculosis
Antimicrobial Therapy
Zoonotic Potential
Test Your Knowledge
Handouts/Brochures
Presentations
Links
Line
Guestbook
Sponsors & Credits
Ask the Expert
Site Map
Search the Site
Home

HISTORY
JOHNE'S INFORMATION CENTER - University of Wisconsin Ñ School of Veterinary Medicine
University of Wisconsin - School of Veterinary MedicineUniversity of Wisconsin - School of Veterinary Medicine
GALLERY GRAPHICS



Photo of Enlarged mesenteric lymph nodes: Heifer #13


SEARCH IMAGES HEADER





Table Bottom

Enlarged mesenteric lymph nodes
Line
This photo shows the serosal (outside) surface of the ileum and the adjacent mesenteric lymph nodes (arrow). Lymph nodes function to trap bacteria that may penetrate the intestinal wall. In response to M. paratuberculosis infection in cattle mesenteric lymph nodes often become enlarged. The tissues in this picture came from an experimentally M. paratuberculosis-infected heifer (#13). The pattern of diagnostic tests results for this animal are shown in another photograph. Moderate enlargement, without caseous necrosis, of the lymph nodes is evident. From the serosal surface, the ileum appears normal. The mucosal (internal) surface is shown in another photograph.

Back



HomeLineBack to Top
Line
Copyright
Line
Contact
Line
Sponsorship
Line
Credits