Page 54 - Rule Outs in Small Animal Medicine, Problem-oriented Assessment of Problems in Physical Examination and Clinical Pathology, 2nd Edition

Internal Medicine Internal Medicine
Gastrointestinal tract Gastrointestinal tract

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Small intestinal
diarrhoea

With protein Without protein
loss loss

Primary
Destruction of the Lymphangi- gastrointestinal Secondary to
intestinal wall ectasia systemic disease
disease

– Parvovirosis Mal- Destruction of
– Invagination Acquired assimilation Increased Changes in Inflammation the normal Cell damage due
– Foreign body (infiltrative Congenital intestinal motility mucosal spreading to the bacterial gut to systemic
– Severe disease) perfusion intestinal tract flora toxins
inflammation

Mal- Mal-
absorption digestion
Gastro- – Hyper- – Shock – Pancreatitis – Antibiotic – Uraemia
intestinal Severe thyroidism – Hypoadreno- – Peritonitis therapy – Chemo-
lymphoma inflammation corticism therapeutic
– Thrombosis agents
– Exocrine
Damage to the – Portal
gut wall pancreatic hypertension
– IBD insufficiency (e.g. liver
– Infiltrative – Cholestasis cirrhosis)
fungal disease
(e.g. histo- – Intestinal
plasmosis)
parasites
– Food responsive
diarrhea
– Diarrhea responsive
to modulation of
the intestinal
microbiota
– Intestinal
neoplasia
– Idiopathic
inflammation (IBD)

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