VPA 211: General Veterinary Parasitology and Helminthology (3+1)

PATHOGENESIS

• Young worms migrate through liver causing destruction of liver tissue leaving characteristic "yellow mosaic marking" on the surface and the tracts are filled with necrotic materials.
• Adult worms penetrate into the stomach mucosa producing cavity filled with sanguino purulent fluid and each contains nine worms.
• Later on the cavity develops into thick cyst or tumour connected to lumen of stomach by small canal which may causes peritonitis.