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Morphological, immunophenotypic and clinical characteristics of dogs with lymphocytic - plasmacytic duodenitis

Author(s): Đorđević Milena | Krstić V. | Krstić N. | Vasiljević Maja | Ilić V. | Vučićević Ivana | Aleksić-Kovačević Sanja

Journal: Acta Veterinaria
ISSN 0567-8315

Volume: 62;
Issue: 4;
Start page: 445;
Date: 2012;
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Keywords: dog | duodenum | endoscopy | histopathology | LPD

The most important morphological feature of the immune response in lymphocytic-plasmacytic duodenitis (LPD) in dogs is the presence of a mononuclear infiltrate in the duodenal mucosa. The ethiopatogenesis of this disease is still unknown, nor are known all the immunophenotypic characteristics of the infiltrate cells, which would be of help in the elucidation of the pathogenesis of LPD. The study involved 60 adult dogs of different breeds and both sexes: 54 dogs with symptoms of diarrhea and vomiting that lasted longer than three weeks and six clinically healthy dogs that served as controls. Hematological and biochemical analysis of blood, radiology, ultrasound and endoscopic diagnosis were carried out. Samples of duodenal mucosal biopta were examined by histopathological and immunohistochemical methods. During endoscopic examination, duodenal wall thickening, mucosal edema and hyperemia were observed in 46 dogs. Microscopic studies showed on the epithelial cells of the duodenum degenerative changes, and sometimes desquamation. Most of the intestinal crypts were dilated, irregularly shaped and filled with detritus. On immunohistochemical examination of samples of the duodenum in a number of dogs with LPD a predominant expression of CD3 + T lymphocytes was observed. [Projekat Ministarstva nauke Republike Srbije, br. III 46002]
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