Changes

5-20% cases are peracute and present as sudden death. This is thought to be due to sequelae such as adrenal gland involvement or rupture of abomasal ulcers etc.

5-20% cases are peracute and present as sudden death. This is thought to be due to sequelae such as adrenal gland involvement or rupture of abomasal ulcers etc.

Other signs are multicentric and non-specific:

Other signs are multisystemic and non-specific:

 

Cardiovascular – Dysrhythmmias, jugular distension, tachycardia, murmurs

Cardiovascular – Dysrhythmmias, jugular distension, tachycardia, murmurs

Gastrointestinal – Anorexia, hepatomegaly, dysphagia, constipation or diarrhoea, abomasal tympany, hypomotility

Gastrointestinal – Anorexia, hepatomegaly, dysphagia, constipation or diarrhoea, abomasal tympany, hypomotility

Retrobulbar tumours sometimes cause blindness and other ocular signs.

Retrobulbar tumours sometimes cause blindness and other ocular signs.

Neurological signs and lameness also sometimes occur due to local tumour growth.

Neurological signs and lameness also sometimes occur due to local tumour growth.

Animals are usually afebrile.

Animals are usually afebrile.

Infected animals become permanent carriers.

Infected animals become permanent carriers.