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Typical signs include:
 
Typical signs include:
 
*well grown and in good body condition which in contrast to dogs
 
*well grown and in good body condition which in contrast to dogs
*Hypersalivation or ptyalism is the most commonly reported clinical feature, but rarely in dogs
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*hypersalivation or ptyalism is the most commonly reported clinical feature, but rarely in dogs
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*seizures reported in 50% of cases, but uncommon in dogs
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*anorexia, vomiting and diarrhoea, polyuria and polydipsia is less common
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*compulsive behaviour is less common compared to in dogs
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====Biochemistry====
 
====Biochemistry====
 
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*Hypoproteinaemia
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*Mild to moderate increase in alanine aminotransferase (ALT) and alkaline phosphatase (ALP)
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*Decreased blood urea nitrogen (BUN)
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*Hypoglycaemia in a small number of dogs
    
====Other Tests====
 
====Other Tests====
 
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*Fasting hyperammonaemia
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*Increased postprandial ± preprandial bile acids
    
===Diagnostic Imaging===
 
===Diagnostic Imaging===
 
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*Abdominal radiographs shows microhepatica and often renomegaly.  Renomegally may relate to altered splanchnic blood flow or o increased metabolic activity of the kidney due to hyperammonaemia.  These findings in a young dog is highly suggestive of [[Portosystemic Shunt]]
     
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