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===Introduction===+
* Additionally, can get extraintestinal abnormalities+** Cholangiohepatitis
−** Nephritis
−** Pancreatitis
−** Polyarthropathy
−** Thrombocytopenia (uncommon)
−*** Extent of thrombocytopenia not related to duration of IBD or to its resolution.
−* The term "inflammatory bowel disease" covers several conditions characterised by the major inflammatory cell(s) present.
−** All have some common features:
−*** Thickening of the mucosa.
−*** Villus atrophy in advanced disease.
−*** Significant inflammatory infiltrate in the mucosa and sometimes deeper layers.
+
* Seen mainly in the dog.+** Also in the cat and horse+* Idiopathic.
−* Granulomatous inflammation
−** Macrophages and giant cells, but also [[Neutrophils|neutrophils]], eosinophils, lymphocytes and plasma cells.
Variable
Variable
−=Pathology=
+==Pathology==
−* Inflammatory bowel disease will result in malabsorption and in many cases, chronic diarrhoea.
* Inflammatory bowel disease will result in malabsorption and in many cases, chronic diarrhoea.
* The small and/or [[Large Intestine - Anatomy & Physiology|large intestine]]s are affected.
* The small and/or [[Large Intestine - Anatomy & Physiology|large intestine]]s are affected.
** The site determines whether diarrhoea is present.
** The site determines whether diarrhoea is present.
−Additionally, can get extraintestinal abnormalities including cholangiohepatitis, nephritis, pancreatitis, polyarthropathy and thrombocytopenia (uncommon).
−The term "inflammatory bowel disease" covers several conditions characterised by the major inflammatory cell(s) present. All have some common features: thickening of the mucosa, villus atrophy in advanced disease and significant inflammatory infiltrate in the mucosa and sometimes deeper layers.
+==Granulomatous enteritis==
==Granulomatous enteritis==
−Is seen mainly in the dog but also in the cat and horse. It is idiopathic but causes granulomatous inflammation.
−Macrophages, giant cells, [[Neutrophils|neutrophils]], eosinophils, lymphocytes and plasma cells are present.
−==Idiopathic colitis==
==Idiopathic colitis==