Category:Stomach and Abomasum - Inflammatory Pathology

Gastritis, Fibrinous/ Diptheric Gastritis

Gastritis, Haemorrhagic

Vesicular Gastritis

• Is not seen, as the stomach has no stratum spinosum.

Chronic gastritis

• Chronic gastritis is usually proliferative rather any other type of gastric inflammation.
• Usually a parasitic cause.
• Occurs mostly in the pig and in cattle.

• Pig
  • Redworms (Hyostrongylus)
  • Seen mostly in sows, and are present in up to 30% of pig herds.
  • Small numbers produce little pathology, but large numbers cause thin sow syndrome.
    • Animals eat well but slowly lose condition.

• Cattle
  • Ostertagiasis produces a condition similar to thin sow syndrome.

Chronic Hypertrophic Gastritis In The Dog

• Clinically see anorexia, weight loss, anaemia and associated hepatic disease.
• Associated with protein loss into gut.

Pathology

• Hyperplasia of mucosa.
  • Mucosa thrown up into folds.
  • Reduced numbers of parietal cells and increased numbers of goblet cells.

Chronic Atrophic Gastritis In The Dog

• Aetiology uncertain.
• Grossly: (may be difficult to appreciate)
  • Reduced mucosal thickness.
  • Loss of rugae.
• Histologically
  • Mucosal thinning.
  • Loss of gastric glands.
  • Diffuse inflammatory infiltrate of lymphocytes and plasma cells.
  • Fewer eosinophils in lamina propria.