Gastroduodenoscopy is an important diagnostic procedure in dogs and cats with chronic gastrointestinal disturbances. It allows direct assessment of the esophageal, gastric and duodenal mucosa in combination with taking fluid samples and mucosal biopsies for further microbiological and histological examination. Histology is needed to reveal different types of chronic inflammatory bowel diseases such as lymphocytic-plasmocytic, eosinophilic, histiocytic or granulomatous enteritis. It is also possible to diagnose tumors and intestinal lymphangiectasia with gastroduodenoscopy when the proximal parts of the small intestine are involved in the disease process. Indications for gastroduodenoscopy in dogs or cats are: - Chronic or recurrent vomiting/regurgitation
- Bloody stool
- Chronic or recurrent diarrhea
- Chronic or recurrent abdominal pain
- Anorexia and weight loss
- Suspected esophageal/gastric foreign body
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