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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
*hypersalivation or ptyalism is the most commonly reported clinical feature, but rarely in dogs
*seizures reported in 50% of cases, but uncommon in dogs
*anorexia, vomiting and diarrhoea, polyuria and polydipsia is less common
*compulsive behaviour is less common compared to in dogs
====Biochemistry====
====Biochemistry====
*Hypoproteinaemia
*Mild to moderate increase in alanine aminotransferase (ALT) and alkaline phosphatase (ALP)
*Decreased blood urea nitrogen (BUN)
*Hypoglycaemia in a small number of dogs
====Other Tests====
====Other Tests====
*Fasting hyperammonaemia
*Increased postprandial ± preprandial bile acids
===Diagnostic Imaging===
===Diagnostic Imaging===
*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]]