Peer-reviewed veterinary case report
Endoscopic duodenal and ileal biopsies to diagnose cat bowel disease
By Scott, K D et al.·Published in Journal of veterinary internal medicine·2011·Department of Veterinary Small Animal Clinical Sciences, United States·View original on PubMed →
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Original publication title: Utility of endoscopic biopsies of the duodenum and ileum for diagnosis of inflammatory bowel disease and small cell lymphoma in cats.
- Species:
- cat
Plain-English summary
A group of 70 cats with gastrointestinal issues underwent endoscopic biopsies of their small intestines to check for inflammatory bowel disease (IBD) and small cell lymphoma (SC-LSA). The study found that 26% of the cats were diagnosed with SC-LSA, but there was a lack of agreement between the biopsies taken from the duodenum and ileum, meaning that some cats might only show signs of SC-LSA in one area. This suggests that veterinarians should consider taking biopsies from both parts of the intestine to ensure a proper diagnosis.
People also search for: cat gastrointestinal disease · cat small cell lymphoma treatment · cat inflammatory bowel disease symptoms
Abstract
BACKGROUND: Endoscopic duodenal biopsies are relatively convenient, minimally invasive tests for infiltrative intestinal disorders of cats. Ileal endoscopic biopsies might not be performed because of technical difficulty and effort required to prepare the colon. It is not known whether or not histopathology of feline duodenal and ileal biopsies for detection of inflammatory bowel disease (IBD) and small cell lymphoma (SC-LSA) provides comparable results. OBJECTIVES: To evaluate the agreement between endoscopic biopsies of duodenum and ileum in cats with IBD and SC-LSA. ANIMALS: Seventy client-owned cats with gastrointestinal disease and adequate duodenal and ileal tissue biopsies obtained endoscopically. METHODS: Retrospective study: Search of medical records of cats with enteropathy and endoscopy. Samples were blinded and re-evaluated by single pathologist (JM) for quality, number of biopsies, and diagnosis according to WSAVA standards. Agreement of IBD and SC-LSA diagnoses among biopsy sites assessed using Cohen's Kappa. RESULTS: Eighteen of 70 cats (26%) were diagnosed with SC-LSA in duodenum, ileum, or both. Of these 18 cats, 7 (39%) were diagnosed with only duodenal SC-LSA, 8 (44%) were diagnosed with only ileal SC-LSA, and 3 (17%) had SC-LSA in both duodenum and ileum. There was poor agreement on diagnosis between duodenal and ileal biopsies (kappa = 0.23). CONCLUSIONS AND CLINICAL IMPORTANCE: Although review by a single pathologist remains a limitation of this study, results suggest that there is a population of cats in which diagnosis of SC-LSA can be found only by evaluation of ileal biopsies. Clinicians should consider performing both upper and lower GI endoscopic biopsies in cats with infiltrative small bowel disease.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/22092613/