Colonic inflammatory bowel disease in a cat

39 Colonic inflammatory bowel disease in a cat

Problem list and discussion of problems

The diagnostic approach to diarrhoea usually begins with determining if the cause is large or small intestinal in origin. The diarrhoea in this case appeared to have a large intestine component due to the increased frequency and the presence of fresh blood and mucus. However, concurrent involvement of the small intestine could not be ruled out, especially with the presence of weight loss. The decreased appetite and weight loss were thought to be related to the diarrhoea. Differential diagnoses for decreased appetite include those which cause the animal to be unable to eat (can’t eat) and those in which the animal does not want to eat (won’t eat); in this case the cat was able to eat so the decreased appetite was likely due to illness.

Differential diagnosis

Case work-up

A 4- to 6-week dietary trial with a highly digestible restricted novel protein or hydrolyzed diet is appropriate in some cases of diarrhoea. With cases of colitis, the addition of mixed soluble and insoluble fibre sources may also be of benefit. The use of probiotics and prebiotics are also being investigated in intestinal disorders of dogs and cats. In this case, however, as the cat was not eating well and had been losing weight, prompt investigation rather than waiting for the results of a dietary trial was indicated.

Minimum data base

Routine haematology was performed and revealed a moderate mature neutrophilia (21.7 × 109/l; reference range: 2.5–12.8 × 109/l) and a mild monocytosis (1.06 × 109/l; reference range: 0.07–0.85 × 109/l). Blood smear analysis confirmed these findings and showed atypical, reactive appearing lymphocytes, suggestive of antigen stimulation.

Serum biochemistry results revealed a marginal increase in urea (9.9 mmol/l; reference range: 2.8–9.8) and bile acids (7.2 mmol/l; reference range 0–7) and a marginal hypophosphataemia (1.39 mmol/l; reference range: 1.4–2.5). Mild hypoalbuminaemia (24.0 g/l; reference range: 28–39) was also present.

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Sep 22, 2016 | Posted by in SMALL ANIMAL | Comments Off on Colonic inflammatory bowel disease in a cat

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