**'''Gall bladder mucocoeles''' produce a kiwi sign on radiographs and may be a sequel to cystic mucinous hyperplasia of the gall bladder mucosa.
**'''Gall bladder mucocoeles''' produce a kiwi sign on radiographs and may be a sequel to cystic mucinous hyperplasia of the gall bladder mucosa.
**'''Biliary neoplasia''', most commonly cholangiocellular cystadenoma (in cats) or carcinoma (in dogs).
**'''Biliary neoplasia''', most commonly cholangiocellular cystadenoma (in cats) or carcinoma (in dogs).
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**Aberrent migration of '''intestinal parasites''', including ''[[Ascaris suum]]'' in pigs and ''[[Parascaris equorum]]'' in horses. This occur particularly when worms have been treated with an anthelmintic that causes spasticity of the muscles.
*'''Extraluminal obstructions''':
*'''Extraluminal obstructions''':
**[[Pancreatitis - Dog and Cat|'''Pancreatitis''']], '''pancreatic abcess''' or '''neoplasm'''
**[[Pancreatitis - Dog and Cat|'''Pancreatitis''']], '''pancreatic abcess''' or '''neoplasm'''